Custom Kicks Photo by Wear these water shoes for 12 hours, and the polyethylene insoles mold to your feet. Mion, $100; mionfootwear.com This is the one that started it all: Miōn's iconic original, the Current Sandal, is the standard for comfort by which all performance sandals are measured. Its customized comfort comes courtesy of Miōn's Ergomorphic™ footbed, while 360° lacing enables a personalized fit.