Built for warmth without the bulk, the Baselite Heated Baselayer Top is your go-to first layer for cold days. With a lightweight crew neck design, soft knit outer shell, and smooth lining, it fits comfortably under any jacket—or stands strong on its own. Flat stitching and in-seam thumbholes provide a clean, secure fit, while 3 heat zones deliver consistent warmth where you need it most. Lightweight soft jersey knit outer shell material Soft interior moisture wicking liner Crew neck design Flat seam stiching to prevent chafing Thumb hole wrist gaiters 3 heat zones on the font and back Control from your phone or smart watch Comes with 7.4v Powersheer® rechargeable battery Dedicated battery pocket 3 adjustable temperature settings Up to 9 hours of heat between charges (2+ high, 3+ med/high, 4+ med/low, 9 low)