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USWE VST Termocell Winter Harness with insulated shoulder strap pockets and red elastic straps shown on black hydration backpack from rear view. The Termocell thermal insulation system features body heat trapping pockets along both shoulder straps to prevent hydration tube freezing in cold weather conditions.
USWE VST Termocell Winter Harness displayed on black daypack showing front view with red mesh ventilation panels, adjustable elastic chest straps, and insulated shoulder strap system designed to prevent hydration tube freezing during winter mountain biking and backcountry adventures.

VST Termocell Winter Harness
$59.99
Key details
  • Weight: 254g

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WHY WE DESIGNED IT:

The VST Termocell Winter Harness uses your body heat to keep hydration tubes flowing in freezing conditions, wrapping your drink line in insulated pockets that prevent ice blockage during subzero mountain biking, ski touring, and winter trail missions. At 254g, this modular harness clips onto any VST daypack with adjustable elastic straps that fit over bulky winter layers while maintaining the same bounce-free NDM lockdown you need when temperatures drop and staying hydrated becomes critical.

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Size guide - VST Termocell Winter Harness

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Features & Specs

Specifications

  • Weight 254g

Full Description

Design & Action

Frozen hydration tubes kill rides faster than a flat tire in the backcountry. The VST Termocell Winter Harness is a thermal insulated hydration backpack harness engineered for riders who refuse to let subzero temperatures turn their water supply into a useless ice block when winter conditions get brutal. This insulated harness system uses your own body heat to keep your hydration tube flowing during cold weather mountain biking, ski touring, and winter trail running missions where staying hydrated matters as much as staying warm. Designed to pair with any VST daypack, this 254g harness delivers the same No Dancing Monkey lockdown you expect from USWE with built-in Termocell insulation that wraps your drink tube in a thermal barrier so you can keep hammering through freezing temps without sucking on frozen plastic.

Tech & Specs

  • Termocell insulated tube pockets: Trap body heat against your hydration hose to prevent freezing in subzero conditions
  • 254g lightweight construction: Adds winter protection without weighing you down on long backcountry missions
  • NDM 4-point harness compatibility: Locks onto VST daypacks for zero-bounce performance even with thick winter layers
  • Adjustable elastic straps: Stretch to fit over bulky jackets and insulated gear without restricting breathing or movement
  • Modular design: Swaps onto any VST pack so you can run the same system year-round with seasonal harness changes

Fit & Kit

Clip the VST Termocell Winter Harness onto your VST daypack using the same attachment points as your standard harness, then route your hydration tube through the insulated pockets that run along each shoulder strap. Adjust the elastic straps to fit snugly over your winter jacket without crushing your chest or limiting airflow during hard efforts. The harness works with any USWE hydration bladder and keeps water drinkable in temperatures where standard setups freeze solid within the first hour of riding.

FAQ

Does this harness work with non-USWE hydration bladders? +
Yes. The VST Termocell Winter Harness is compatible with any USWE hydration bladder and will fit standard hydration tubes from other brands as long as they route through the insulated shoulder pockets.
How cold can I ride before my water freezes with this harness? +
The Termocell insulation uses your body heat to keep water flowing in subzero temperatures where standard setups freeze within an hour. Actual performance depends on ride intensity, layering, and how long you stop moving.
Can I use this harness with a bulky winter jacket? +
Absolutely. The adjustable elastic straps stretch to fit over thick insulated layers without restricting your breathing or crushing your chest during hard efforts.
Will this harness fit my existing VST daypack? +
Yes. The VST Termocell Winter Harness clips onto any VST daypack using the same modular attachment points as your standard harness, so you can swap between seasonal setups on the same pack.
Do I need to buy a special insulated hydration tube separately? +
No. The harness itself provides the insulation by wrapping your existing hydration tube in thermal pockets that trap body heat against the hose to prevent freezing.