Windproof, waterproof, seam-sealed and highly breathable, Kryptek's laminated, innovative fabric will change the way you think about fleece. We�ve taken the Vellus's fleece and added Thinsulate Platinum XTS Insulation & X-STATIC silver odor-control technology to create one of the world�s most versatile garments. From 15 degrees to 50 degrees, you will be comfortable, dry and quiet like you never thought possible. Vellus has incredible stretch combined with a stretch lamination for the ultimate in comfort, mobility and versatility.