This is a durable breasted pants made of thick polyester long fibers, and is finished with no stitching through high frequency weldering. Because of the features of long fibers, this product is flexible, lightweight and strong. It is also cold resistant, waterproof and quick drying. Interior pocket Comes with a buckle that is easy to use even when wearing gloves and a hook that makes it easy to put on and take off. Designed to keep pants from falling off during small use. (Fabric Thickness: 0.01 inch (0.35 mm)