PolyStretch Sleeping Bag Liner - Knitted Polyester

Product Description

Upgrade your sleep system with the PolyStretch™ Sleeping Bag Liner — designed to add comfort, warmth, and versatility to your outdoor adventures. Made from soft, stretchy knitted polyester, this liner moves with you through the night while boosting the warmth of your sleeping bag by 8–15°F.

Use it on its own as a lightweight sleeping bag for warmer nights, or attach it inside your sleeping bag with the built-in snap loops for added warmth. Includes a drawstring cinch top for heat retention and a rounded foot box to keep your feet cozy.

Weighing just 11 oz (with an additional 12 g for the carry bag), it packs down small, making it a compact, lightweight essential for backpacking, camping, or travel.

Key Features

Soft & Stretchy Comfort: Polyester knit fabric provides comfort, flexibility, and unrestricted movement.

Versatile Use: Use alone on warm nights or attach inside a sleeping bag with snap loops for added insulation.

Added Warmth: Boosts sleeping bag temperature rating by approximately 8–15°F.

Custom Heat Retention: Drawstring top helps seal in warmth when temperatures drop.

Warm Foot Box: Rounded design improves heat retention around the feet.

Lightweight & Packable: Weighs just 11 oz (carry bag adds 12 g) and packs down small.

Easy Care: Lightweight, compact, and machine washable for simple maintenance.

Dimensions inside the carrying bag are 7 x 4 inches (non-compressed)

Technical Specs