The Only Three Zone Heated Base Layer Bottom

This is the only battery-heated base layer bottom with three separate zones of warmth to fully ensure comfort. Ideal while taking in a cold-weather football game or enjoying a winter’s walk, it is unlike bulkier garments with heating coils and excess insulation because the silky spandex base layers use hair-thin micro fibers as conductors to allow for maximum range of motion. With the temperature control set to maximum, the bottom’s backside and entire knee area stay toasty for two hours on its highest setting (five hours on low). Rigorous tested by The Hammacher Schlemmer Institute found the base layer added a satisfying 21° increase in just five minutes, up to a maximum of 30° above ambient temperature. Its lithium-ion battery provides recharges via the included AC adapter. Unisex waist/inseam sizes XS (28/29), S (29/30), M (30/31), L (31/42), or XL (33/33). (6 oz.)