Hyperlite Mountain Gear | Lightweight, Durable Outdoor Gear

20-Degree Mummy Bag

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$442 $650 In stock

Category: Sleep

Wrap up your day with the 20-Degree Mummy Bag, sewn up to perfection for exceptional warmth, compressibility, and comfort without unnecessary bulk. Premium 1000 fill power grey goose down treated with a DWR finish provides maximum loft and reliable insulation, while 3-dimensional baffles allow the bag to fully loft to 2.75 inches for efficient heat retention. An ultralight 7D micro-ripstop nylon shell and lining balance durability and breathability for dependable and consistent performance you’ll look forward to throughout your cooler season adventures. Draft tubes along the zipper, neck, and hood help seal in warmth, while cinch cords and a parka-style hood create a secure, cozy fit through the night. Continuous horizontal baffles allow you to shift insulation as conditions change, and a small chest pocket keeps essentials within easy reach. Lights out, Campers!

KEY FEATURES
  • 3-Dimensional baffles allow lofting to reach 2.75"
  • 1000 Fill Power grey goose down treated with a DWR finish for maximum loft and compressibility
  • 7D micro-ripstop nylon shell and lining is down proof, durable, extremely light-weight, and provides excellent air permeability for maximum compression
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Sofia K. ★★★★★

Took this on a three-night trip where temps dipped to about 30 and I stayed toasty the whole time. The 1000 fill power down lofts up fast after being crammed in my pack all day, and it barely takes up any room. Hood cinches down nicely too.

Ellie S. ★★★★★

Slept like a baby at 28 degrees with just a base layer on—that 1000 fill down is no joke. Compresses down smaller than my sleeping pad, which makes a huge difference when you're strapped for pack space. Zero complaints.

Owen ★★★★★

Took this out on a chilly mountain trip and the 1000 fill down kept me toasty at 28°F without me having to wear a puffy inside. It compressed down shockingly small in my pack, which made the hike in way more enjoyable. Probably the best warmth-to-weight ratio I've owned in years.

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