Ignik Ripple Rechargeable Hand Warmers

The Ignik Ripple Rechargeable Hand Warmer replaces disposable chemical warmers with a battery unit that recharges, which changes the economics after a season or two and takes a steady stream of foil packets out of the waste stream. A rechargeable warmer also switches off, so heat is available when it is needed rather than running until the packet exhausts itself in a jacket pocket. Heat settings let the output be dialed rather than accepted. Most units of this type also work as a power bank for a phone, which is worth confirming for the specific model. Charge it before a cold trip, since cold shortens runtime. Unisex.