Hotronic BD Surround Comfort 2P XLP Set.

shin protector with compression: soft - PFI 50, 10 - 15 mmHg. External surround heating element for even more comfort and warmth. The battery packs are simply attached to the inner waistband via the press studs on the heating socks and are not noticeable. Heating power is adjusted via 4 levels directly on the battery pack, incl. Power Boost heating level for short-term extra warmth (approx. 3 minutes). Whether you're planning a short trip or a longer journey, Hotronic Socks XLP - SURROUND by Hotronic are easy to use in all types of footwear. Use while skiing, snowboarding, biking, horseback riding, fishing and during other cold temperature activities. BootDoc's Hotronic Socks XLP Power Fit socks, made from a wool blend with a soft, gradual pressure distribution to increase comfort and warmth in a performance fit.
The Hotronic heating element begins in the double cuff of the sock that securely holds the battery pack. Ergonomically placed on the outside of the sock for added comfort, the element then positions along the lower leg, wraps around the achilles and under the arch, and finally delivers heat to the toes and balls of the feet. The heated socks are machine washable at 30 degrees without tumble dryer, we recommend the Hey Sport Microwash. This detergent eliminates bacteria even at low temperatures.
Bootdoc Surround Comfort heated socks:

Surround Heat
Enlarged heating surface
Asymmetrical shin and instep protectors for more comfort Battery packs are attached via the press studs on the inner waistband
Heating power is adjusted via 4 levels directly on the battery pack, incl. Power Boost heating level for short-term extra heat (approx. 3 minutes)
External heating element for more comfort
2-layer pocket waistband construction for extra protection and support for the battery pack
Machine washable up to 30 °C (in included laundry net)
External "Surround" heating element for more comfort
Shin and instep protector
Material: 74 % nylon, 20 % lycra/spandex, 6 % wool (merino)

Hotronic XLP 2P BT Battery Packs:

XLP 2P BT Battery
Power: 4400 mAh
up to 18-20h on lowest level | 5-6h on highest level
High performance Li-Ion battery in compact design and light weight
Intelligent charging technology (additional USB charging option)- Constant heat output
Controllable via Bluetooth and App
Stand-by mode
Battery storage mode for summer storage
HOTRONIC HEAT APP
The app provides an overview of the current battery charge level and heating levels.
The HOTRONIC Heat App is available free of charge in the App Store and Google Play Store.

Hotronic XLP 1P BT Battery Packs:

XLP 2P BT Battery
Power: 2200 mAh
up to 8-10h on lowest level | 2.5-3h on highest level
High performance Li-Ion battery in compact design and low weight
Intelligent charging technology (additional USB charging option)- Constant heat output
Controllable via Bluetooth and App
Stand-by mode
Battery storage mode for summer storage
HOTRONIC HEAT APP
The app provides an overview of the current battery charge level and heating levels.
The HOTRONIC Heat App is available free of charge in the App Store and Google Play Store.

Hotronic XLP 1P Battery Packs:

XLP 2P BT Battery
Power: 2200 mAh
up to 8-10h on lowest level | 2.5-3h on highest level
High performance Li-Ion battery in compact design and light weight
Intelligent charging technology (additional USB charging option)- Constant heating power.