Tailwater Caddis BWO Trucker Hat

by @southfork_nymph

Antennae up, wings folded, autumn on the stones.

A caddisfly on mossy stones, a South Fork Boise river map and a BWO cripple, in moss, brass and weathered wood, for days on the tailwater.

A caddisfly rests on a mossy river stone beside a winding map of the South Fork Boise, with a small BWO cripple drifting below. It is coloured in moss green, brass contour lines and weathered wood on a bone cream ground.

  • Caddisfly resting on mossy slate stones
  • Brass contour map of the river canyon
  • Last Chance Cripple BWO in sage
  • Anderson Ranch Dam and Steel Bridge marked
  • Moss, brass and weathered wood palette

The cap

One design, four caps. The front panel is what the paint or the dye sits on, so it changes the hat.

  • A blank Trucker cap

    Trucker

    The house cap — structured mid profile, foam-and-mesh back, snapback.

    Specs
    Profile
    Mid profile
    Build
    6-panel · Structured — buckram behind the front
    Crown
    3½ in (8.9 cm)
    Visor
    Pre-curved, 2¾ in (7 cm)
    Closure
    Snapback
    Adjusts to
    21½–24 in (54.5–61 cm)
    Airbrushed on
    Natural cotton twill
    Sublimated on
    White polyester foam
  • A blank Rope cap

    Rope cap

    Structured five-panel with a near-flat brim and a cord across it.

    Specs
    Profile
    Mid-high profile
    Build
    5-panel · Structured
    Crown
    4 in (10.2 cm)
    Visor
    Near-flat, 2⅞ in (7.3 cm), contrast rope
    Closure
    Snapback
    Adjusts to
    21½–23¾ in (54.5–60.5 cm)
    Airbrushed on
    Stone cotton twill
    Sublimated on
    White polyester twill
  • A blank Dad hat

    Dad hat

    Soft, low and unstructured — washed cotton with a strap back.

    Specs
    Profile
    Low profile
    Build
    6-panel · Unstructured — soft front
    Crown
    3¼ in (8.3 cm)
    Visor
    Curved, 2¾ in (7 cm)
    Closure
    Strap back, brass buckle
    Adjusts to
    21–23½ in (53.5–59.5 cm)
    Airbrushed on
    Washed khaki cotton
    Sublimated on
    White polyester twill
  • A blank Five-panel camp cap

    Five-panel camp

    Flat brim, low crown, packs flat in a vest pocket.

    Specs
    Profile
    Low profile
    Build
    5-panel · Unstructured
    Crown
    3¼ in (8.3 cm)
    Visor
    Flat, 2½ in (6.4 cm)
    Closure
    Strap back, side-release clip
    Adjusts to
    21½–23½ in (54.5–59.5 cm)
    Airbrushed on
    Field olive nylon-cotton
    Sublimated on
    White polyester

Fit

A cloth tape measure around the crown of a blank cap
CapProfileCrown heightVisorAdjusts to
TruckerMid profile3½ in (8.9 cm)Pre-curved, 2¾ in (7 cm)21½–24 in (54.5–61 cm)
Rope capMid-high profile4 in (10.2 cm)Near-flat, 2⅞ in (7.3 cm), contrast rope21½–23¾ in (54.5–60.5 cm)
Dad hatLow profile3¼ in (8.3 cm)Curved, 2¾ in (7 cm)21–23½ in (53.5–59.5 cm)
Five-panel campLow profile3¼ in (8.3 cm)Flat, 2½ in (6.4 cm)21½–23½ in (54.5–59.5 cm)

One size per cap. Run a tape around your head just above the ears, keeping it level — anything inside the range above will close on it.

Two finishes

The same design, made two ways. Pick one in the panel; the cap and the quantity are yours to choose too.

  • An airbrush misting pigment through a stencil onto a cap panel

    Hand airbrushed

    $85 for one hat, on a trucker

    Painted to order — would ship in about 2 weeks

    How it is made
    How it is made
    Sprayed by hand through this design's own stencils, one layer at a time, each left to dry before the next mask goes down.
    How it looks
    Soft gradients and hand-cut stencil edges. Every cap is a little different.
    What it sits on
    On a natural cotton twill front.
    Durability and care
    Water-based paint, heat set and sealed. It takes rain and a season on a boat; spot clean with cool water, never a washing machine.
  • A sublimation-printed cap panel peeled from the transfer sheet

    Sublimation printed

    $32 for one hat, on a trucker

    Printed to order — would ship in 5–7 business days

    How it is made
    How it is made
    The design is printed in dye onto transfer paper, then pressed with heat so the dye soaks into the polyester fibres.
    How it looks
    Full colour edge to edge, and identical every time.
    What it sits on
    On a white polyester foam front — sublimation only takes on white polyester.
    Durability and care
    The dye is in the fibre, not on it, so it will not crack or peel. Gentle wash, air dry.

The artwork

A caddis sits on a round slate stone, antennae swept long, wings folded into a mottled tent. A moss green river winds past it through brass contour lines, from the Anderson Ranch Dam mark down past Steel Bridge. Under it all, a small Last Chance Cripple BWO floats with one sage wing up.

Wear it on the South Fork Boise River in October, or anywhere the conversation turns to tailwater bugs. People read the map first. Then they spot the caddis, then the little cripple, and ask which one you are tying on.

Weathered wood on the caddis wings is the layer to get right. Lay it light and broken, so the bone cream ground shows through as mottling. Solid brown reads as a moth. Broken brown reads as a caddis.

A cap in tissue in an open kraft box

What arrives

  • The hat
  • A care card
  • On a hand airbrushed hat, a numbered tag naming the water it was painted from, when the design names one
A cap being spot-cleaned with a soft brush

Looking after it

Hand airbrushed

  • Spot clean with cool water and a soft brush. Never a washing machine.
  • Keep it out of a hot car for long stretches — heat-set paint is tough, but a dashboard in July is not a test worth running.
  • Reshape the brim by hand while damp.

Sublimation printed

  • Spot clean, or gently hand wash in cool water. No bleach.
  • Air dry. Do not iron the print.
  • Reshape the brim by hand while damp.
  • The dye is in the fibre, so the print will not crack or peel.

Details

Airbrush palette

Colours
bone cream, sage, slate grey, moss green, brass, weathered wood, umber

Details

Subject
caddisfly with a BWO cripple and river map
Style
painterly naturalist illustration with river map

Make it yourself

A hat-painting bench with a blank cap, stencils and an airbrush

AdvancedAbout 4½ hours at the bench, plus curing9 layersYou'll need an airbrush, a cap jig and 7 colours

The palette

  • Bone cream
  • Sage
  • Slate grey
  • Moss green
  • Brass
  • Weathered wood
  • Umber

The layers

9 layers, in this order. Each mask comes off and the paint has to dry before the next one goes down.

  1. Ground
  2. Bank haze
  3. Stones
  4. Moss and river
  5. Map lines
  6. Caddis
  7. BWO cripple
  8. Marks and names
  9. Glints

The kit's stencil set is cut from these layers; with the cutter (12 hats and up) you cut your own from this design's layer files.

How to mix each colour

  • Bone cream

    White with a drop of yellow and the smallest touch of brown

  • Sage

    2 parts green, 1 part white, a drop of black to dull it

  • Slate grey

    White with blue and a touch of black, about 4 : 1 : ½

  • Moss green

    2 parts yellow, 1 part green, a drop of black to deaden it

  • Brass

    Mix by eye against the photograph; test on the card first

  • Weathered wood

    Mix by eye against the photograph; test on the card first

  • Umber

    Equal parts red, yellow and blue, then a drop of black to deepen it; or burnt umber straight from the bottle

Setup

  • Ventilation or a spray booth. Water-based paint still throws a fine mist, and you will be breathing it for hours.
  • A half-mask respirator rated for paint mists. A dust mask is not one.
  • A compressor with a moisture trap, set and tested on a card before you start: wet air spits water into the paint.
  • Reducer and a cleaning pot within reach, so a clog is a ten-second fix instead of a ruined panel.
  • Spray a test card for every colour before it touches the cap. Colour reads differently wet, dry and on twill.

Prep

  • Lint-roll the front panel. Every fibre left on it prints as a speck in the paint.
  • Mask the mesh, any seams you want clean and the whole visor, underside included, with low-tack tape and paper.
  • Stretch the crown over the cap jig so the front panel is taut and curved the way it will be worn. Spraying a slack panel flat distorts the design when it is worn.
  • Spray one light coat of transparent base so the colour sits on the fabric instead of soaking into it.

Layer by layer

  1. 1 · Ground — 0.5 mm · 25–30 PSI

    bone cream — the pale field under the whole design

    Mask None on the panel itself: the mesh and the visor are already masked from the prep.

    Colour Bone cream — White with a drop of yellow and the smallest touch of brown

    Needle
    0.5 mm (a 0.35 mm works, it just takes longer)
    Pressure
    25–30 PSI
    Distance
    6–8 in from the panel
    Passes
    3–4 light passes, building the colour
    Dry
    10 minutes, or 60–90 seconds with a heat gun on low, before the next mask goes down

    Tip Fade wet to dry and never lay one heavy coat: twill wicks paint sideways and the edge blooms.

  2. 2 · Bank haze — 0.35 mm · 20–25 PSI

    sage — a soft green fade behind the stones, upper left

    Mask Lay this layer's mylar stencil and burnish the edges flat with your thumbnail.

    Colour Sage — 2 parts green, 1 part white, a drop of black to dull it

    Needle
    0.35 mm
    Pressure
    20–25 PSI
    Distance
    4–6 in from the panel
    Passes
    2–3 passes
    Dry
    10 minutes before lifting the stencil

    Tip Spray away from the stencil edge, not into it, so the air does not push paint underneath.

  3. 3 · Stones — 0.35 mm · 20–25 PSI

    slate grey — rounded river stones beneath the insect

    Mask Lay this layer's mylar stencil and burnish the edges flat with your thumbnail.

    Colour Slate grey — White with blue and a touch of black, about 4 : 1 : ½

    Needle
    0.35 mm
    Pressure
    20–25 PSI
    Distance
    4–6 in from the panel
    Passes
    2–3 passes
    Dry
    10 minutes before lifting the stencil

    Tip Spray away from the stencil edge, not into it, so the air does not push paint underneath.

  4. 4 · Moss and river — 0.35 mm · 20–25 PSI

    moss green — moss on the stone tops and the winding river line

    Mask Lay this layer's mylar stencil and burnish the edges flat with your thumbnail.

    Colour Moss green — 2 parts yellow, 1 part green, a drop of black to deaden it

    Needle
    0.35 mm
    Pressure
    20–25 PSI
    Distance
    4–6 in from the panel
    Passes
    2–3 passes
    Dry
    10 minutes before lifting the stencil

    Tip Spray away from the stencil edge, not into it, so the air does not push paint underneath.

  5. 5 · Map lines — 0.35 mm · 20–25 PSI

    brass — thin contour lines tracing the canyon around the river

    Mask Lay this layer's mylar stencil and burnish the edges flat with your thumbnail.

    Colour Brass — Mix by eye against the photograph; test on the card first

    Needle
    0.35 mm
    Pressure
    20–25 PSI
    Distance
    4–6 in from the panel
    Passes
    2–3 passes
    Dry
    10 minutes before lifting the stencil

    Tip Spray away from the stencil edge, not into it, so the air does not push paint underneath.

  6. 6 · Caddis — 0.35 mm · 20–25 PSI

    weathered wood — mottled tent wings, legs and long antennae

    Mask Lay this layer's mylar stencil and burnish the edges flat with your thumbnail.

    Colour Weathered wood — Mix by eye against the photograph; test on the card first

    Needle
    0.35 mm
    Pressure
    20–25 PSI
    Distance
    4–6 in from the panel
    Passes
    2–3 passes
    Dry
    10 minutes before lifting the stencil

    Tip Spray away from the stencil edge, not into it, so the air does not push paint underneath.

  7. 7 · BWO cripple — 0.35 mm · 20–25 PSI

    sage — the upright wing and body of the small mayfly below

    Mask Lay this layer's mylar stencil and burnish the edges flat with your thumbnail.

    Colour Sage — 2 parts green, 1 part white, a drop of black to dull it

    Needle
    0.35 mm
    Pressure
    20–25 PSI
    Distance
    4–6 in from the panel
    Passes
    2–3 passes
    Dry
    10 minutes before lifting the stencil

    Tip Spray away from the stencil edge, not into it, so the air does not push paint underneath.

  8. 8 · Marks and names — 0.3 mm · 18–22 PSI

    umber — dam mark, lettering, wing veins and fine edges

    Mask The hand-cut subject stencil, inner pieces first, then the outline piece.

    Colour Umber — Equal parts red, yellow and blue, then a drop of black to deepen it; or burnt umber straight from the bottle

    Needle
    0.3 mm
    Pressure
    18–22 PSI
    Distance
    3–4 in from the panel
    Passes
    2–3 passes per tone, light to dark
    Dry
    10 minutes between tones

    Tip Light tones first: a light colour over a dark one needs many coats, a dark one over a light one needs two.

  9. 9 · Glints — 0.2–0.3 mm · 12–15 PSI

    bone cream — light on the wing veins and the stone tops

    Mask None: freehand, with a shield card held against any hard edge.

    Colour Bone cream — White with a drop of yellow and the smallest touch of brown

    Needle
    0.2–0.3 mm
    Pressure
    12–15 PSI
    Distance
    1–2 in from the panel
    Passes
    Freehand, in short controlled strokes
    Dry
    10 minutes, then check it before you cure

    Tip Low pressure, close in and moving: stop the stroke before you release the trigger.

Step by step

  1. Bone cream ground over the full design area, no mask. Start around 20 PSI, 0.35 mm needle, 15–20 cm away. These are starting settings; adjust to your paint and surface. Let it dry fully.

  2. Sage bank haze with a loose torn-paper shield along the stone tops. 15 PSI, 0.3 mm needle, 15 cm. Fade it upward and to the left, keeping the right side clean.

  3. Slate grey stones through a cut stencil of the three rounded shapes. 15 PSI, 0.3 mm, 8–10 cm. Darken the undersides and leave the tops lighter.

  4. Moss green on the stone tops freehand, then the winding river line through a thin curved stencil. 12 PSI, 0.2 mm, 5 cm. Keep the river edge crisp.

  5. Brass contour lines through a fine line stencil or freehand with a steady hand. 10–12 PSI, 0.2 mm, 3–4 cm. Short passes; let each line dry before crossing the next.

  6. Weathered wood caddis through a cut wing mask. 12 PSI, 0.2 mm, 4–6 cm. Build the wings in broken dashes for mottling, then the legs and antennae freehand, close and light.

  7. Sage BWO cripple wing and body through a small cut mask. 10 PSI, 0.2 mm, 4 cm. Lift the mask straight up so the wing edge stays sharp.

  8. Umber details: dam mark, lettering through a letter stencil, wing veins and fine edges. 10 PSI, 0.15–0.2 mm, 2–3 cm. Work slowly; thin lines need thin paint.

  9. Bone cream glints on the wing veins and stone tops, freehand. 8–10 PSI, 0.2 mm, 2 cm. A few dots go a long way.

  10. Let the paint cure as long as its maker states, then seal with the clear coat recommended for that paint, in two thin passes.

Cure

  • Heat set at 300°F / 150°C. Water-based textile paint is not wash-fast until it is heat set.
  • Cap press: 3–5 minutes with a teflon sheet over the design.
  • Or heat gun: 2–3 minutes per panel, keeping it moving 2–3 in off the fabric so it does not scorch.
  • If you have neither, air cure for 72 hours before the cap touches water.

Seal

  • Two light coats of matte fabric sealer, UV-resistant, from 8–10 in, 15 minutes apart.
  • Leave it 24 hours before the cap is worn.
  • Never a gloss sealer on cotton twill: it shines, cracks along the creases and looks like a sticker.

Clean-up

  • Flush the brush with water, then airbrush cleaner, until it sprays clear.
  • Strip the needle and wipe it toward the tip, never away from it.
  • Never soak the brush body overnight.

Common mistakes

  • Brass lines spidering from too much paint close in. Drop pressure, thin the paint and pull back a centimetre.
  • Solid wing colour that turns the caddis into a moth. Build the wings in passes and stop early.
  • Lettering stencils lifting and bleeding. Press the edges down well and spray light, dry coats.
  • Sealing before the paint cures, which clouds the darks. Wait the full cure time before the clear coat.

Tips

  • Test every line weight on scrap first. The brass contours and caddis antennae live or die on paint thinness.
  • Mottle the caddis wings in short broken strokes. Let the cream show through between them.
  • Keep the river line the boldest green on the piece so the map reads from across a parking lot.
  • Spray the BWO cripple last among the colour layers so its sage stays clean and does not pick up overspray.
An airbrush, compressor, moisture trap, six colour bottles and a cleaning pot.
The kit

Every kit size

Trucker · kit for 1 hat

$224

Bought separately $249 · you save $25

Includes Starter airbrush set · Cap jig · and 7 more

Every item in this kit · 9 items

Blanks

  • Trucker blank, natural cotton twill front$91

Stencils

  • Pre-cut mylar stencil set for this design — 9 layers$181

Paint & masks

  • Water-based textile airbrush colour, 2 oz — one per colour in this design$422 oz × 7
  • Transparent base and reducer, 4 oz$71
  • Low-tack masking film and ¼ in tape$81
  • Matte fabric sealer, 4 oz$121

Equipment

  • Starter airbrush set — 0.3 mm dual-action gravity brush, mini compressor, braided hose$1291
  • Cap jig — holds the crown taut while you spray$241

Guide

  • Printed step-by-step guide for this designIncluded1

Trucker · kit for 12 hats

$1,073

$89.42 a hat

Bought separately $1,220 · you save $147

Includes Dual-action gravity-feed airbrush · Quiet compressor with tank and moisture trap · Cap jig and two spare crown forms · Tabletop spray booth with exhaust fan · and 11 more

Every item in this kit · 15 items

Blanks

  • Trucker blank, natural cotton twill front$7812

Stencils

  • Desktop stencil cutter, 12 in — the "stencil printer": cuts mylar from this design's layer files$2991
  • Stencil mylar, 7 mil, 12 × 12 in$2210 sheets
  • This design's layer files, every layer (SVG)Included1

Paint & masks

  • Water-based textile airbrush colour, 4 oz — one per colour in this design$984 oz × 7
  • Transparent base and reducer, 16 oz$161
  • Low-tack masking film$181 roll
  • Matte fabric sealer, 16 oz$281

Equipment

  • Dual-action gravity-feed airbrush, 0.3 mm$1351
  • Quiet compressor with tank and moisture trap$1791
  • Cap jig and two spare crown forms$641
  • Tabletop spray booth with exhaust fan$1491
  • Cleaning pot, brushes and a half-mask respirator$991
  • Heat gun for curing$351

Guide

  • Printed step-by-step guide for this designIncluded1

Trucker · kit for 12 × 12 hats

$3,124

$21.69 a hat

Bought separately $3,676 · you save $552

Includes Two dual-action gravity-feed airbrushes · Production airbrush · Twin-piston compressor with tank and two regulators · Production spray booth · and 13 more

Every item in this kit · 17 items

Blanks

  • Trucker blank, natural cotton twill front$756144

Stencils

  • Stencil cutter-plotter, 24 in — the production "stencil printer"$6491
  • Stencil mylar, 7 mil, 12 × 12 in$8550 sheets
  • This design's layer files, every layer (SVG)Included1

Paint & masks

  • Water-based textile airbrush colour, 32 oz — one per colour in this design$33632 oz × 7
  • Transparent base and reducer$491 gal
  • Low-tack masking film$543 rolls
  • Matte fabric sealer$891 gal

Equipment

  • Two dual-action gravity-feed airbrushes, 0.3 mm$2702
  • Production airbrush, 0.5 mm, for base fades$951
  • Twin-piston compressor with tank and two regulators$3291
  • Production spray booth, two fans$2891
  • Three cap jigs$1923
  • Cleaning station, respirator and spare cartridges$1391
  • Cap heat press for curing$2791
  • Drying rack, 24 caps$651

Guide

  • Printed step-by-step guide for this designIncluded1

The creator

An illustrated portrait for Abel Hargrove (an illustration, not a photograph)

Abel Hargrove

@southfork_nymph

South Fork Boise River, Idaho regular. Waits on the Caddis.

  • South Fork Boise Harvest Ale — a river beer by Abel Hargrove
  • October BWO Last Chance Cripple — a fly pattern by Abel Hargrove

See everything by @southfork_nymph