Harbinger Pro Weightlifting Gloves feature genuine leather palms that are cushioned with resilient open-cell foam that maintains its structure and remains pliable while strength training. The vented design helps to wick away moisture, and wrap-around thumb protection covers the inside of the thumb with a second layer of leather to protect against abrasion. The seams of Harbinger Pro Weightlifting Gloves are double-stitched for durability. 90 day manufacturer s warranty. Hand wash and air dry only.