LaCrosse Women's Alpha Range Rain Boot 100% Synthetic Imported Rubber sole Shaft measures approximately 11" from arch Heel measures approximately 1.5" Platform measures approximately 1. inches Boot opening measures approximately 15.5" around Hand-laid premium ZXT rubber over a 5mm neoprene core for durable, flexible, waterproof comfort ZXT Rubber is ozone, abrasion and tear resistant with added tensile strength Active Fit with adjustable gusset for easy on/off and a secure, comfortable fit on foot Textured finger grips and angled top band make it easy to grab hold and pull on and molded kick-off heel plate for easy hands-free removal Multilayer rubber on the toe, heel and vamp for added durability and support Moisture wicking and quick drying polyester jersey liner