Electric Heated Inner Long Sleeve Renewed with added protection against low-temperature burns. Can be used alone or for layering; a frequently-worn item. From autumn to winter, it can be used alone to combat the cold. In mid-winter, wearing an outer layer provides excellent heat retention. Choose a snug fit to prevent warm air from escaping, increasing heat retention. Although it appears thin, it uses a stretch material with inner padding and micro-fleece backing, making it warm and highly heat-retaining even on its own. A highly versatile item. A 3-stage switch is located inside the left pocket, allowing temperature adjustment while keeping your hand in the pocket. Can also be worn as a set with the bottoms. Material: Outer: 82% Nylon, 18% Polyurethane Lining: 100% Polyester Switching: 100% Polyester Padding: 100% Polyester Color: N・Black Size: L Fabric Thickness: 7.1oz Features: 3-hour timer, heat generation, warmth (heat retention), hand washable, USB Type-A, stretch, lightweight, brushed