SWIMS Sneaker Loafer The lightweight and breathable SWIMS Sneaker Lace Loafer is a hybrid design. Like the entire SWIMS footwear collection, they are quality-crafted and feature an anti-bacterial mesh upper with durable and flexible TPU rubber shell. Plus, they also have ventilation "gills" which are beneficial to keep your feet cool, or water drainage, and traditional lace up design.