Mens' X-Change Mitt by Swany in Black 100% Leather Uni-pull cuff: Easy one hand pull to tighten and release. Utility heat pocket: Can be used for a heat pack, storing small articles, or a vent for cooling off and drying. Aquaguard: Waterproof zippers from YKK SwanyDry: A woven, synthetic lining material with soft, hydrophilic moisture management properties. LeatherShield: Top grain leathers, specifically tanned for durability, water repellency and suppleness.