Simply Light Designs · Tents
Simply Light Designs Frost Guard VBL - Vapor Barrier Liner
Description
The Frost Guard VBL is a lightweight vapor barrier liner designed to help prevent body moisture from accumulating in your sleeping bag or quilt during extended cold-weather trips. It creates a barrier between your body and your sleeping insulation, helping reduce moisture buildup that can affect insulation performance.
Its simple, tapered, hoodless design minimizes weight and bulk while offering multiple sizes to accommodate different sleep systems.
Features
- Lightweight waterproof material
- Tapered, hoodless design with shaped footbox
- Optional drawcord closure at the head end
- Double-rolled sewn seams
- Stuff sack included
Specifications
Material: Xenon Sil 1.1 in Charcoal Grey
Available Lengths:
Short: 72"
Regular: 78"
Long: 84"
Head-End Width:
Standard: 30"
Wide: 33"
Footbox: Approximately a 40" circumference
Widths are measured laid flat. Finished dimensions are approximate.
Estimated Weights
| Length | Standard | Wide |
|---|---|---|
| Short (72") | 3.9 oz (111 g) | 4.1 oz (116 g) |
| Regular (78") | 4.2 oz (119 g) | 4.4 oz (125 g) |
| Long (84") | 4.5 oz (128 g) | 4.8 oz (136 g) |
Weights are approximate and exclude the included stuff sack (0.3 oz / 9 g). Actual weights may vary slightly due to material and construction differences.
Important Information
The Frost Guard is intended for use inside a sleeping bag or quilt, typically over a lightweight base layer. It does not provide insulation or add a temperature rating to your sleep system.
As with any vapor barrier system, moisture and condensation may accumulate inside the liner during use.
Although the fabric is waterproof, seams are sewn but not sealed. The finished liner is not completely waterproof or airtight and is not intended for use as a waterproof bivy or emergency shelter.