From DIY tie-dyes to sea creature technoprints, surfer motifs are key style statements this summer. Get in gear with H&M’s bandeau bikini, pulled together with a sarong and carrying case. Perfect for catching waves or rays, this splashy swim look also has a clean spirit. The bikini set is part of H&M’s new WaterAid collection, which provides safe water, sanitation, and hygiene education for people living in poverty, especially in Bangladesh where much of the company’s clothing is produced. H2O, the ultimate essential, gets priority with 10% of proceeds benefiting the charity. A top-notch suit and crystal clear water — sounds pure and simple.