Streambed Caddis Fly Trucker Hat

by @dekasso

A caddis drying off on a warm stone.

An adult caddisfly perched on a wet river stone, in olive, umber and tan, for days spent on moving water.

An adult caddisfly rests on a smooth, wet river stone, antennae swept forward over a blur of mossy streambed rocks. It is coloured in deep olive, moss green, umber and tan, with cream light on the veined wings and water droplets.

  • Adult caddis on a wet river stone
  • Long antennae swept forward
  • Veined tan wings with cream light
  • Soft olive and gold streambed behind
  • Water droplets beading on the rock

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 rounded river stone, its tented wings laid back and its antennae reaching out like fishing line. Behind it, the streambed melts into soft green and gold stones. Cream light catches the wing cells and a few beads of water along the rock.

Wear it to the river when the evening hatch starts, or to the shop when you are only dreaming about it. Anyone who has watched caddis skitter across a riffle will know the shape at a glance, and the olive and umber tones sit quietly with waders and field shirts.

Cream highlights carry the whole piece. Kept thin and placed only on the wing cells, the droplets and the stone's top edge, they turn flat tan and umber into something that looks wet and alive.

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
deep olive, moss green, ochre, umber, tan, dark brown, cream

Details

Category
Adult Caddis
Subject
adult caddisfly
Style
realistic wildlife illustration

Make it yourself

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

AdvancedAbout 4 hours at the bench, plus curing8 layersYou'll need an airbrush, a cap jig and 7 colours

The palette

  • Deep olive
  • Moss green
  • Ochre
  • Umber
  • Tan
  • Dark brown
  • Cream

The layers

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

  1. Backdrop
  2. Background stones
  3. Stone glints
  4. River stone
  5. Stone mottling
  6. Caddis body
  7. Tented wings
  8. Highlights

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

  • Deep olive

    2 parts yellow, 1 part black, a drop of red to warm it

  • Moss green

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

  • Ochre

    2 parts yellow, 1 part brown, a drop of black

  • Umber

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

  • Tan

    3 parts white, 2 parts yellow, 1 part brown

  • Dark brown

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

  • Cream

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

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 · Backdrop — 0.5 mm · 25–30 PSI

    deep olive — a dark green field filling the whole panel

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

    Colour Deep olive — 2 parts yellow, 1 part black, a drop of red to warm it

    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 · Background stones — 0.35 mm · 20–25 PSI

    moss green — round, soft-focus stones behind the insect

    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.

  3. 3 · Stone glints — 0.35 mm · 20–25 PSI

    ochre — warm gold rims and glow on the background stones

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

    Colour Ochre — 2 parts yellow, 1 part brown, a drop of black

    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 · River stone — 0.35 mm · 20–25 PSI

    umber — the smooth, rounded stone across the bottom of the panel

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

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

    Needle
    0.35 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 · Stone mottling — 0.35 mm · 20–25 PSI

    tan — the speckled, wet pattern on the stone's face

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

    Colour Tan — 3 parts white, 2 parts yellow, 1 part brown

    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 body — 0.35 mm · 20–25 PSI

    dark brown — body, jointed legs, long sweeping antennae and wing veins

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

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

    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 · Tented wings — 0.3 mm · 18–22 PSI

    tan — the long roof-shaped wing panels laid back over the body

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

    Colour Tan — 3 parts white, 2 parts yellow, 1 part brown

    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.

  8. 8 · Highlights — 0.2–0.3 mm · 12–15 PSI

    cream — bright wing cells, water droplets and the shine along the stone

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

    Colour 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. Mask the panel edges and fill the full design area with deep olive. Starting point: 25 PSI, 0.5 mm needle, 15 cm distance. Let it dry to the touch.

  2. Cut a loose mask of round shapes for the background stones and dust them in moss green at 20 PSI, 0.35 mm needle, 10 cm. Keep the edges soft so they read out of focus.

  3. Freehand ochre along the top rims of the background stones at 18 PSI, 0.3 mm needle, 6 cm, building a gentle glow rather than hard lines.

  4. Mask the large river stone shape at the bottom and fill it with umber at 22 PSI, 0.5 mm needle, 12 cm. Darken the lower edge with a second pass.

  5. Lay a speckle or torn-paper mask over the stone and mist tan at 15 PSI, 0.35 mm needle, 8 cm to build the mottled pattern.

  6. Mask the caddis silhouette: body, legs and wing outline. Spray dark brown at 18 PSI, 0.3 mm needle, 6 cm. Add antennae freehand at 12 PSI, 0.2 mm needle, 2–3 cm, in one smooth stroke each.

  7. Mask the wing panels, leaving the vein lines covered, and fill with tan at 16 PSI, 0.3 mm needle, 6 cm. Lift the mask to reveal dark brown veins.

  8. Freehand cream into the wing cells, the droplets and along the stone's upper edge at 12 PSI, 0.2 mm needle, 3–4 cm. All settings here are a starting point; test on scrap first.

  9. Let the paint cure for at least 24 hours at room temperature, then heat-set if your paint calls for it.

  10. Finish with a thin, even coat of fabric-safe sealer and let it cure fully before wear.

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

  • Over-spraying cream until the wings look chalky. Stop once the cells glow, and step back to check.
  • Antennae that wobble or blob at the tips. Lower pressure, move faster and keep the needle clean.
  • Hard-edged background stones that compete with the insect. Hold the mask off the surface to soften the edges.
  • Sealing before the paint has cured, which can lift or cloud the dark brown. Wait the full 24 hours.

Tips

  • Sketch the antennae in light pencil first so you can follow the curve in one confident pass.
  • Build the background stones in two light passes; a single heavy coat loses the soft blur.
  • Leave a thin dark gap between the caddis body and the stone so the insect sits on top rather than melting in.
  • Add droplets last, with a tiny dark shadow under each cream dot, so they read as water.
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 — 8 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 Dekasso (an illustration, not a photograph)

Dekasso

@dekasso

Wherever the truck rolls to a stop.

  • Tidewater Sundown Pale Ale — a river beer by Dekasso
  • Prairie Wildflower Portrait Trucker Hat — a trucker hat by Dekasso
  • Ember Golden Stonefly Nymph — a fly pattern by Dekasso

See everything by @dekasso