- Lamina™ construction maximizes the insulation's loft, eliminates cold spots and thermally maps the insulation to areas where you need the most warmth
- Proprietary welded Lamina construction stabilizes the fill without sewing through the bag, eliminating moisture penetration points and maximizing loft
- Thermal.Q insulation is laid in a wave shape, enhancing loft and increasing thermal efficiency; offset welds increase stability and loft
- Standard mummy cut is efficient, warm and comfortable
- Tailored hood comfortably blocks drafts and seals in warmth
- Shaped draft collar blocks the escape of warm air from inside the bag; insulated draft tube extends to bottom of bag to eliminate cold spots
- Contoured footbox is shaped to allow feet to rest naturally; shape preserves loft and allows insulation to drape close to feet for extra warmth
- 30-denier ripstop nylon shell fabric is lightweight and compressible and has a durable water repellent (DWR) finish that causes water to bead up and roll off
- 40-denier polyester taffeta lining breathes for comfort and feels great against your skin
- Light and durable, 2-way zipper with locking slider is backed by wide, antisnag binding tape for easy entry, exit and ventilation
- Left-hand and right-hand zippers available for zip-together functionality
- Includes a nylon compression sack and a mesh storage sack
- Inside length measures 80 in. (203 cm); bag loft is 5.5 in.
- Closeout
Imported.
Many sleeping bags are rated for temperature by an independent testing protocol. REI and the broader industry now use the International Organization for Standardization (ISO) 23537 protocol, which improves on the older European Norm (EN) 13537 standard; you may still see older items in our assortment that were only EN tested. With either protocol, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating. The Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Ratings are based on a person wearing one long underwear layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. Many brands use the Comfort rating for women's bags and the Lower Limit rating for men's and unisex bags. Everyone's body and sleep comfort differ, and conditions of use (posture, clothing, sleeping pad R-value, wind, humidity, etc.) affect total insulation, so EN and ISO ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth.
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