Fieldsheer premium Heated Insoles Shirt Dual-density dynamic anti-fatigue technology absorbs

Dual-density dynamic anti-fatigue technology absorbs shock and returns energy at key zones of the foot

it's a cozy layering piece for daily activities

Textured knit pattern

Screen-print inks are PVC- and phthalate-free

5" diameter grill and folds down to 20

Fieldsheer premium Heated Insoles Shirt Dual-density dynamic anti-fatigue technology absorbsWarmth where it matters mostright under your toes. The Premium BT Heated Insoles feature an ultra thin design that fits easily into any boot or shoe and can be trimmed to size for a custom fit. A single heat zone targets the toes for lasting warmth in cold conditions, and Bluetooth control lets you adjust the heat with ease. Perfect for snow boots, workwear, or any footwear built for long days in the cold. Charge Port Integrated Charging Port