Fabric source
Instead of
Petroleum-based polyester + elastane
Twin Fin
55% Organic Hemp / 45% Organic Cotton
Certified organic hemp and cotton — grown and milled in the USA, plant-based from the ground up.
Plants, not plastic. · Pre-Order
No Plastic. Just Plants.
Sun protection without the plastic.
Every other sun shirt is made of plastic. Ours isn't — and every step from hemp and cotton to knit, cut, and sew happens in the USA.
- 100% Plant-Based
- Made in USA
- Zero Polyester
- Zero Elastane
$78.00
Semi-Bleached Natural
No Plastic. Just Plants.
Made in the USA.
Knit, cut, and sewn here.
Built by twins.
Nature's performance wear
Made from plants. Made for the water.
From the earth, for the water — organic hemp and cotton, knit, cut, and sewn in the USA.
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Materials
Grown, not synthesized.
Performance, unplugged from petroleum. 55% Organic Hemp / 45% Organic Cotton. Knitting, cutting, and sewing — all in the USA.
See MaterialsWe ditched the plastic
The sun shirt that isn't secretly plastic.
Every other sun shirt is made of plastic. Ours isn't. Most poly sunshirts are polyester with elastane — a plastic bag with sleeves.
Manufacturing
Instead of
Overseas synthetics — opaque supply chain
Twin Fin
USA — Fiber to Finish
Knitting, cutting, and sewing — all in the USA. No offshore mystery fabric.
Feel in heat
Instead of
Traps heat; clammy film on skin
Twin Fin
Breathable single jersey — dry-touch on skin
195 GSM lightweight knit. Hemp and cotton breathe — no synthetic film clinging to you.
Microplastic shedding
Instead of
Sheds microplastics every wash
Twin Fin
0% Plastic
Zero polyester means zero plastic fibers in the wash cycle.
Skin feel
Instead of
Breakout-prone plastic film
Twin Fin
Soft natural hand — softens with every wash
Nothing synthetic between you and the day.
Fit & stretch
Instead of
Elastane / spandex compression stretch
Twin Fin
Spandex-free relaxed fit — room to move
No elastane by design. Cut with room to move — not a compression layer.
End-of-life
Instead of
Persists as plastic waste
Twin Fin
Plant-based fibers; plastic-free packaging
From fiber to mailer — designed without plastic.
55% Organic Hemp / 45% Organic Cotton100% Plant-BasedMade in USA0% PlasticZero PolyesterZero ElastanePlastic-Free
Shop the Sun HoodieBuilt different
Performance, unplugged from petroleum.
Every feature exists for a reason out on the water — crossover hood, thumbholes, and honest construction.
Zero elastane · easy fit
Spandex-Free Relaxed Fit
This fabric does not stretch like synthetic performance layers — and that is intentional. A relaxed, easy fit with room to move. It breathes exceptionally well and softens with every wash.
Zero Elastane100% Plant-Based
Cap-compatible · low bulk
Crossover Hood
Cut to sit cleanly over a cap — shade without bulk when the sun is high.
Integrated · flat-finish
Thumbhole Cuffs
Hands stay covered on the cast or the commute — without a bulky cuff.
Pocket · drop-tail · flatlock
Built to Last
Left-chest pocket, drop-tail hem for coverage when you bend or reach, and flatlock seams for comfort against skin.
Materials
Grown, not synthesized. Made in the USA.
Performance, unplugged from petroleum. Organic hemp and cotton — knitting, cutting, and sewing — all on American soil.
55% Organic Hemp / 45% Organic Cotton
195 GSM (5.2 oz) · lightweight single jersey knit
Certified organic · semi-bleached natural · USA fiber to finish
- Organic hemp & cotton — USA
- Knitting — USA
- Cutting — USA
- Sewing — USA
100% Plant-BasedMade in USAZero PolyesterZero Elastane0% Plastic
Our Story
Built by twins. Grown from plants. Worn on the water.
Raised on the Florida coast — surfing, spearfishing, flats fishing, gardening. We got tired of every “performance” sunshirt being a plastic bag with sleeves. So we built the opposite — and kept every step on American soil.
Read Our StoryWe're catching on
Plants, not plastic.
Join our community
Get first access to the launch run.
Limited units in Semi-Bleached Natural. No restocks this season.