Mountain Warehouse Voss II SKI Pants Waterproof- Our IsoDry fabric has a waterproof and breathable membrane to allow perspiration out, but keep you dry. Rated at 10,000mm Extreme- Our high performance Extreme clothing range brings you fully waterproof, breathable and stylish designs exclusively from Mountain Warehouse Guaranteed Waterproof- We're so confident this jacket can weather the storm, that we guarantee its waterproof properties for 3 years Taped Seams- All seams are taped to make sure this garment is fully waterproof Extra Warmth- Insulated and fleece lined for extra warmth