SIZE GUIDE
![](http://bermies.com/cdn/shop/files/SIZE-COLORCHANGING_ed9ac5d9-b0a1-44d2-ad81-03ad60f64e80.jpg?v=1654786256)
![](http://bermies.com/cdn/shop/products/purple1_{width}x.jpg?v=1651151527)
![](http://bermies.com/cdn/shop/files/purple4_{width}x.jpg?v=1622745796)
![](http://bermies.com/cdn/shop/files/purple5_abdf687a-368d-4c73-bf4a-abbde20795b4_{width}x.jpg?v=1622745920)
![](http://bermies.com/cdn/shop/files/home-3_758410b7-89b5-4084-8ddd-63f30aa191c1_{width}x.png?v=1643609935)
![](http://bermies.com/cdn/shop/files/home-4_3394e710-ba5f-487b-a35c-d8feaffb40a3_{width}x.png?v=1643609934)
![](http://bermies.com/cdn/shop/files/home-5_1811a26f-f256-4ce8-a7b5-66ee700f3217_{width}x.png?v=1643609935)
![](http://bermies.com/cdn/shop/files/home-6_a746d8b2-5a23-4595-96ae-96d140fbc8d2_{width}x.png?v=1643609935)
It's not the water,
It's the temperature
Our switch trunks are thermochromic, meaning they are temperature sensitive. The color/pattern will switch from warmer to cooler water temperatures or vice versa.
90% recycled polyester | 10% elastane
![](http://bermies.com/cdn/shop/files/color-ph_{width}x.jpg?v=1643911694)
made from upcycled
plastic bottles
made from upcycled
plastic bottles
plastic bottles