Keep feet super warm on a single charge for a shorter period, or add a lower level of warmth for all day comfort. Batteries hideaway in calf strap. Available in red and black combination color. Includes 2 7V rechargeable lithium batteries and charger
Womens: XS: 4-5.5, S: 6-7.5, M: 8-9.5, L: 10-11.5
Mens: S: 5-6.5, M: 7-8.5, L: 9-10.5, XL: 11-12.5
PLEASE NOTE: This is a personal care item and is returnable if in its original unopened packaging and unused condition.