Patagonia and Outerknown are the safe bets for sustainable beachwear.

Probably.

If you’re looking for 2025 beachwear that actually walks the walk, stick with Patagonia for men’s boardshorts and Outerknown for women’s. Summersalt is also solid if you want something more stylish.

The problem with the “sustainable beachwear” category is that most of it is marketing. Tons of brands slap “eco-friendly” on a swimsuit made from virgin polyester and call it a day. The real deal uses recycled nylon (E