Sockwa Playa Lo Men Canvas Water Shoe synthetic-and-rubber Pull-on beach socks with low top ready for beach sports, walking, beach wear, river crossings, and more 2mm neoprene sides and toe area for warmth and protection, with lycra tongue for breathability and flexibility. Outer sole of braided fabric for abrasion resistance on sand, inner sole lined with thin fleece for comfort. Low top for comfort in hot weather or when on hard packed sand Designed for use on sand or smooth surfaces - not on concrete. Crushable, flexible, durable, minimal - and machine washable!