The Original Muck Boot Company Excursion Pro Mid pull-on boots are 100% waterproof and are ideal for outdoor chores, a day in camp, or a ride to the hardware store in the rain. Pull-on waterproof boots are made of a durable rubber neoprene upper. 4mm neoprene insulation for warm comfort. Features XpressCool lining provides a more breathable foot environment. Breathable mesh lining for a comfortable foot environment. Cushioned sockliner reduces friction and guards against heat build up. Lightweight EVA midsole for added support and shock absorption. Rubber Pod EVA outsole provides optimal traction and support. Imported. Measurements: Weight: 1 lb 3 oz Shaft: 4 1 2 in Product measurements were taken using size 9, width M. Please note that measurements may vary by size.