S-XL.
Fleece lined interior. Navy or Dark Grey. It’s powered by an unobtrusive lithium-ion polymer rechargeable battery that provides up to seven hours of heat on low (113u00B0 F), six on low/medium (122u00B0 F), five on medium/high (131u00B0 F), and four on high (140u00B0 F). Heated Sweater-Fleece Vest - Women's - XL - Grey Its virtually undetectable heating elements are woven from carbon fibers that are 5X thinner than human hair, delivering sustained warmth in the front and back while allowing comfortable wear.