Sperry Top-Sider Mens Nautical Mako Boat Shoes - Medium 100% Leather Rubber sole Removable, full-length EVA orthotic with Wave-Comfort System for all-day underfoot comfort Dual-density bottom with cushion midsole for under foot comfort 360 lacing system with rustproof eyelets for a secure fit Genuine hand-sewn Tru-Moc construction for durable comfort Non-marking lugged outsole with Wave-Siping for versatile wet/dry traction