Mountain Hardwear Lamina -20 Sleeping Bag - Long

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Built for subzero temps, the Mountain Hardwear Lamina -20°F long sleeping bag's insulation provides warmth, high loft, durability, softness and compressibility built for damp, sub-freezing conditions.

  • Features

    • 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 93 in. (236 cm); bag loft is 9 in.
    • Closeout


    View all Mountain Hardwear Men's Sleeping Bags
  • Technical Specs

    Best Use


    Temperature Rating (F)

    -20 degrees (F)

    Temperature Rating (C)

    -29 degrees (C)


    6 lbs. 7.7 oz.


    51 g 30-denier ripstop nylon

    Insulation Type



    Thermal.Q 80% recycled polyester/20% polyester fibers

    Fill Weight

    4 lbs. 8.3 oz.


    40-denier polyester plain weave

    Sleeping Bag Shape


    Fits Up To (in.)

    78 inches

    Shoulder Girth (in.)

    66 inches

    Hip Girth (in.)

    60 inches

    Stuff Sack Size

    11 x 21.5 inches

    Stuff Sack Volume


    Compressed Volume

    17 liters




    Contains recycled materials

  • Reviews
    5 reviews with an average rating of 4.6 out of 5 stars

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