Features: Comfortable & High-elastic: Made of premium modal core yarn, absorbent, breathable, elastic thickened, super soft & cozy. 4 Temperature Levels: Padded with heating element and featured with 4 temperature levels (104°F/113°F/131°F/149°F), helps focus heat in the toe to keep feet from getting cold and offers adjustable temperature to suit warming needs indoors and outdoors. Also features one-button control: short press to check battery status, long press to activate temperature setup, then short press to adjust preferred temperature. Machine Washable: Remove the 2 battery packs, put the plug in the sock pocket and put them in a laundry bag before washing (Note: for hand washing, avoid rubbing the wire and hot parts, do not put the plug in water, dry flat before use). USB Rechargeable & Long Lasting: Comes with a split charging cable for portable charging of the 2 battery packs. Stays on standby for up to 7 hours after fully charging for 3 hours. Wide Applications: Ideal for people who always feel cold feet in winter. Widely used for hunting, skiing, ice fishing, and other winter events.

Product specifications