Conquer cold-weather riding with the FIRSTGEAR Gen4 Heated Jacket Liner in Medium. FIRSTGEAR's most advanced heated inner layer to date, the Gen4 liner heats your core, chest, and back in seconds — keeping your body warm and your muscles loose when temperatures drop. The streamlined, low-profile design layers seamlessly under your existing riding jacket with no bulk, while 12V power delivery ensures you stay consistently warm from start to finish of even the longest cold-weather rides.
- FIRSTGEAR Gen4 heated jacket liner with latest-generation heating technology
- Targets core, chest, and back — the body's most critical heat-loss zones
- 12V motorcycle electrical system powered for reliable, on-demand warmth
- Low-profile slim fit layers under any riding jacket without added bulk
- Compatible with FIRSTGEAR Single and Dual Remote Heat-Troller controllers
- Medium sizing for a snug, efficient, form-fitting heat transfer fit
