Gordini Kids&#39; Aquabloc II Mitt, Black, Large SHELL 100% Polyester TRIM 95% Polyester/ 5% Spandex/ LINING 100% Polyester Imported Shell: Mini ripstop with breathe weave stretch woven fabric. genuine leather fingers and wrap caps with diamond grip palm and thumb. Insulation: Megaloft insulation with Hydrowick microdenier lining, and Aquabloc, waterproof, windproof, breathable insert. Features: Aquabloc, fleece cuff, leather sidewall reinforcement.