Isotex Upper - Waterproof, windproof and breathable material keeps the feet dry and comfortable. Hydrophilic Breathability System - Whilst keeping moisture out, inner moisture vapour is allowed to escape. Sealed Seams - Lining membrane seals the seams stopping moisture from entering. Hydropel Water-Resistance - The surface wicks away mud and other moisture from the shoe to keep it lightweight Toe and Heel Protection - A toe cap and a heel bumper provide protection and comfort. Colour: blue