The Seac Sub 2.5mm Anatomic HD Gloves is constructed out of Nylon, and it definitely does keeps you warm. It features a non slip palm, and it is so easy to put on, being a slip-in design. This pair of gloves gives your fingertips an excellent feel, therefore it reaches out of photographers, needing the feel of the buttons on their camera housing. As it does not come with any velcro straps to secure, we advise you to purchase a size smaller then your usual.