Bucken - Thermal Underwear Shirt Grey-Black

Bucken® Thermal Underwear Shirt for Both Men and Women – Say Goodbye to the Cold!

Optimal Heat and Comfort
This thermal underwear shirt activates a comfortable heating system with a simple button press and provides up to 9 hours of heat per charge. The shirt is thin enough to be worn under your regular clothes.

High-Quality Material and Comfortable Design
Made of stretchy polyester with a slim fit. It is designed to be worn over a base layer and has a zipper at the neck for adjustable fit.

Fast and Efficient Heat
Equipped with three carbon fiber heating elements that provide heat to the shoulders, lower back, and abdomen. The heat increases blood circulation and can relieve pain for those with rheumatic conditions.

Simple Temperature Control
A button near the right wrist makes it easy to adjust the heat, even with gloves on. Four LED lights indicate the battery level, and the system has a safety feature to prevent accidental adjustments.

Three Heat Settings:

• Low: 35 °C, 9 hours & 20 minutes
• Medium: 45 °C, 4 hours & 55 minutes
• High: 55 °C, 3 hours & 5 minutes

High-Capacity Lithium-Ion Battery
Powered by a 7.4 V lithium-ion battery with 4,000 mAh for optimal heat without feeling heavy.

Convenient Battery Storage
The battery is stored in a pocket on the right side and is discreetly placed for comfort.

Easy Care and Maintenance
Machine washable at a maximum of 30 °C.Remove the battery before washing and use the included laundry bag.

Included Accessories
Comes with battery, USB-A charging cable, laundry bag, and manual in English, Swedish, and Finnish.