HEATLOK THERMAL LAYER FOR EXTREME COLD WEATHER - Heatlok is a high-tech patented system of hollow fibers and microfiber that provides warmth without excess bulk or loss of dexterity.The Heatlok system "traps" air creating a thermal barrier keeping the warmth in the winter gloves.These unique layer combines with the polar fleece lining to keep your hands in these thermal gloves warm even when temperatures plummet in the range of - 20°F to 0°F. | PERFECT COMBINATION OF SOFTNESS AND COMFORT - OZERO Fleece Winter Sports and Genuine Deerskin Leather Gloves for Men and Women are made of a Deer Suede Leather palm for superior grip and protection and polar fleece for thickness, warmth, and comfort. | ELASTIC WRIST CUFF - The shirred elastic wrists of these cold weather gloves allow you to keep the cuff closed around your skin, keeping the cold wind out. | PERFECT FIT - Choose from S, M, L, XL for a perfect fit of these insulated gloves. Measure your hand circumference to find the right size on the size chart,if you are between sizes,choose the smaller one. | 100% MONEY BACK GUARANTEE - We offer a 100% money back guarantee on all of our gloves. If you are not happy with the gloves, we will provide a full refund with no questions asked.