Therm-ic S.E.T® Perf +4000B

Therm-ic S.E.T® Perf +4000B are thin heated socks for skiers who want to combine a precise fit in the ski boot with extra warmth around the toes. The socks are specifically aimed at advanced skiers, for whom feel and contact with the boot play a major role.

The Smart.Elastic technology and thin construction provide a close fit without unnecessary bulk in the boot. At the same time, a discreet heating element runs around the toes, spreading warmth exactly where it is needed. You therefore maintain both comfort and feel during long days on skis.

The socks combine merino wool with temperature-regulating knitting for warmth, insulation, and breathability. Additionally, the polyamide fibers provide support for both the foot and the leg. The Moisture Vent technology helps transport moisture away from the skin and contributes to keeping your feet dry.

The Therm-ic S.E.T. Perf +4000B comes complete with two S Pack 4000B batteries. On the lowest heat setting, the batteries provide up to 20 hours of warmth. Furthermore, you can connect them via Bluetooth and control the heat directly from the Therm-ic Heat Control App on your phone.

Therm-ic S.E.T® Perf +4000B, Specifications

• Unisex
• Heated socks
• Developed for advanced skiers
• Smart.Elastic technology
• Discreet heating element around the toes
• Merino wool
• Temperature-regulating knitting
• Moisture Vent technology
• Moisture transport
• Two S Pack 4000B batteries included
• Bluetooth-compatible batteries
• Controlled via the Therm-ic Heat Control App
• USB-C charging cable included
• Battery life
  • Heat level 1: up to 20 hours
  • Heat level 2: up to 8 hours
  • Heat level 3: up to 6 hours