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Forest Path
This black and gold vapor barrier liner is your most important companion for those technical winter trips. A VBL works by stopping heat loss from evaporative cooling. A VBL will also prevent your body vapor from degrading your insulation. This is most important during extended stays inside your bag. Western Mountaineering's Hot Sac VBL goes one step further by stopping radiant heat loss with its reflective coating. An elastic draw cord at the top of the Hot Sac cinches about your neck to prevent convective heat loss. This proprietary fabric is a new lightweight ripstop. The new Hot Sac weighs under 4 ounces and packs down to fit into a tiny stuff sack, making it easy to pack on expeditions or bring along on day trips to use in an emergency for signaling, warmth retention or protection from the elements in bad weather.

HotSac Vapour Barrier Liner

  • It is Important to us that you get the right gear with the right fitting for what you do (or want to do). Please place an order to start the purchase process - we will then contact you to confirm your order and send you an online invoice or you can pay upon pickup.

M-W, F: 10-6pm
Th: 10-8pm
Sat: 10-5pm
Sun: 12-4pm


4643 37 St. SW

Calgary AB

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