U.L.Super Stretch Burrow Sleeping Bags

Lightweight and amazingly comfortable, this four-season sleeping bag features Montbell's patented Super Stretch System and Exceloft insulation. This is the bag for you if you are going to constantly be in a wet environment and want the added security of a synthetic bag. Exceloft insulation absorbs less than 3 percent of water when wet, therefore keeping you warmer when your bag gets wet. All bags use a lightweight durable high-density nylon taffeta

Construction | Super Stretch System

MontBell's patented Super StretchSystem uses horizontal elastic stitching to draw the insulation closer fit to your body and keep heat in the bag where it belongs. This stops drafts, eliminates cold spots and improves the bag's thermal efficiency by reducing the volume of air your body needs to heat.

With the Super StretchSystem, you'll experience a freedom of movement like never before. The durable, elastic stitching gently stretches with you as you move. The result is a bag that keeps you toasty warm while accommodating changes in position. We have worked to create the ideal balance close fit and exceptional expandability now you can kick back, read a book, do your yoga or simply get a good night's sleep.

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Insulation | Exceloft

When you choose a sleeping bag, the insulation is just as important as the design. MontBell uses our own Exceloft synthetic insulation in sleeping bags to help trap warm air and retain loft. Not only is Exceloft great at keeping you warm, but the combination of 8-denier compacted polyester tubing with extra-thin, 0.7-denier polyester thread makes the insulation remarkably compressible. In addition, Exceloft absorbs very little water, making it highly resistant to saturation and extremely quick to dry.

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