These RHS endorsed boots feature 4mm neoprene; these wellies can be rolled up, or down and worn as an ankle boot. The high-traction rubber outsole holds in muddy conditions, along with breathable air mesh lining keeping your feet cool on warmer days. 100% Waterproof Fully lined with 4mm neoprene for comfort Breathable air mesh lining Comfort topline midsole High-traction outsole Pull-tab for easy on and off RHS Endorsed Estimated boot height 25cm/ 10.2" Estimated max calf circumference 34cm/ 13.9" Versatile, general purpose outsole