Thermic S-PACK 3000B

The Thermic S-PACK 3000B is a rechargeable Bluetooth battery set for Therm-ic heated socks, giving you adjustable warmth on cold days on the hill. Three heat levels, smartphone control and USB-C charging make it simple to use. It's the power source that turns compatible heated socks into all-day toe warmers.

Why we like it:

Changing the heat level from your phone means you never have to dig into your boot cuff to adjust it on the chairlift.

Features and Functions:

Each set includes two batteries and a USB-C charger that tops up both at once in about four and a half hours. Three heat levels run up to 18 hours on low, 8 hours on medium and five and a half hours on high, and Bluetooth lets you adjust them from your smartphone through the Therm-ic app. The packs are splash and dust resistant, snap securely onto the socks, and work with Therm-ic heated socks that use S.E.T. or Fusion heating technology, including the Ultra Warm Sensor S.E.T. socks.

Bottom Line:

A reliable, app-controlled battery set for skiers with compatible heated socks who want warm feet through a full day.