The Downpour Womens Waterproof Trousers are high performance trousers: Fully waterproof with taped seams, whilst also being highly breathable with a mesh lining and half zip opening at the leg: designed to wear over your regular trousers or base layer in wet weather. Fully Waterproof: Isodry fabric with taped seams and tested to 5000mm to keep you dry in most conditions. Breathable: With mesh lining and the fabric membrane allows moisture to escape, to keep you dry on the inside. Half zip: Allow