REI Co-op Trailmade Amphib Hat
Whether you're on land or water, you want to keep a cool head and the sun out of your eyes. The REI Co-op Trailmade Amphib hat has a 2.75 in. bill and perforated back panels to do just that.
- This 6-panel hat features spacer-mesh backing for a structured crown
- Recycled polyester and spandex blend wicks moisture and dries quickly
- Perforated back panels offer airflow on hot days
- Moisture-wicking, comfortable sweatband is made with 100% recycled polyester
- Adjustable back webbing strap provides a dialed fit
- 2.75 in. soft, flexible brim still holds structure—and floats if dropped in water
- Machine wash; air dry
- Made in a Fair Trade Certified™ factory
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
View the REI Co-op Trailmade Product LineView all REI Co-op Men's Ball CapsBest Use | Hiking Watersports |
---|---|
Hat Style | Ball Cap |
Fabric | 97% recycled polyester/3% elastane; sweatband: recycled polyester |
Moisture Wicking | Yes |
Quick Drying | Yes |
Visor/Brim | Yes |
Head Circumference | S/M: 22.8 inches L/XL: 23.6 inches |
Length of Bill | 2.75 inches |
Gender | Unisex |
Sustainability | Contains recycled materials Fair Trade Certified™ factory From a Climate Label Certified brand |
S | M | L | XL | One Size | S/M | L/XL | |
---|---|---|---|---|---|---|---|
Head Circumference | 21.5 - 22 | 22 - 22.75 | 22.75 - 23.5 | 23.5 - 24.2 | 21.5 - 23.5 | 21.5 - 23 | 23.25 - 24.25 |
Sizing Notes
All measurements are stated in inches.
Better gear is built together
From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.


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Nice Hat
Lightweight, breathable, comfortable, and adjustable. I have a relatively small head for a large male, and most trucker hats just look obnoxious on me. This one fits great in the S/M size and is still adjustable for a perfect fit.
Good ventilation
Good hat, with nice ventilation in the back. Looks nice if you like a built-up baseball hat profile; I personally prefer something that is closer to my head shape.
Love this hat
Love this hat because it comes in a larger size. Most of these light running type hats look funny on me because they are small. This one fits perfect if you have a larger head if you get the L /XL. Very light weight and breathable.
REI Co-op Trailmade Amphib Hat is perfect!
RET Co-op Trailmade Amphib Hat is light and comfortable and is breathable, especially on warm days. The colors that were offered were wonderful and I am very much enjoying this hat for long hikes.
style & function perfection
My new favorite hat, and that's saying something! Lightweight but firm enough to hold its shape, this hat serves a runner well. The colorful print is awesome too.
Lightweight and stylish
My son looks great in this hat, and it’s cool and lightweight. He thinks most hats are uncomfortable, hot and itchy but doesn’t mind this one.