Bulldog swim trunks, $345
Orlebar Brown has developed a following for their great fitting, well-made luxury swim trunks. While they're not the most affordable swim shorts in the world, any guy who owns a pair will attest they're among the best. And for their collaboration with the Blue Marine Foundation, they're also doing some good. Their #OBGOESBLUE campaign kicked off recently, and includes breathtaking images of the sea and underwater life by wildlife photographers George Duffield and Chris Hayes. In addition, they've launched a blue denim pigment capsule collection, which consists of indigo-dyed goods (and some other colorful options), and a special-edition pair of Bulldog swim trunks with a dip-dye, fish silhouette print. Ten percent of all sales from the collection—and 25% of sales from the Bulldog trunks—go to benefit the foundation. If you were looking for an excuse to get some super comfortable sweats, casual tees or a slim cotton button-down, you might as well help the planet while you're at it.