Get rid of your cold feet this winter. Put on a pair of ActionHeats Mens 5-Volt Battery Heated Wool Socks and enjoy cold-weather adventures with toasty feet. Besides being made of a wool-blend fabric combined with an innovative and insulating design, these socks have built-in heat panels in the toes and at the balls of the feet. At the top of each sock, a pair of 5-volt, split-cell power banks plug directly into the sock to create temperatures up to 130 and this comfort lasts up to four hours. An onboard control button boasts three different temperature settings for individual comfort. Power banks tuck into a small pocket at the top of each sock. Sizes:S/M(5-8.5 Mens; 6-9.5 Womens),L/XL(9-12 Mens; 10-13 Womens),2XL(12.5-15 Mens; 13+ Womens). Color: Black. Size: SMALL. Color: Black. Gender: Male. Age Group: Adult. Material: Wool. Type: Socks.