Sperry Men's SeaRacer Boots - Size 12M.Extreme coastal and offshore conditions on fast boats call for performance boots with sticky outsoles. Sperry’s SeaRacer Boots deliver all that and more. Waterproof leather, taped and sealed seam construction and breathable waterproof membranes take care of the wet while hydrophonic meshes and linings with 200g of insulation handle the cold. Their sticky Hydro-Grip™ rubber outsoles feature Adaptive Wave-Siping™ that grips the slipperiest decks by dispersing water underfoot and grabs onto dry decks with equal poise. Imported.Materials: leather upper.