Sierra Designs BTU -20


Short Regular Long
Weight 3 lb 13 oz / 1700 g 4 lb 1 oz / 1800 g 4 lb 7 oz / 2000 g
Fill weight 2 lb 4 oz / 1000 g 2 lb 6 oz / 1100 g 2 lb 8 oz / 1100 g
Temperature rating - 20 F / - 29 C - 20 F / - 29 C - 20 F / - 29 C
Fill 800 Fill-Power Down 800 Fill-Power Down 800 Fill-Power Down
Shape Mummy Mummy Mummy
Max User Height 5 ft 6 in / 170 cm 6 ft 0 in / 180 cm 6 ft 6 in / 200 cm
Shoulder Girth 60 in / 150 cm 64 in / 160 cm 66 in / 170 cm
Hip Girth 56 in / 140 cm 60 in / 150 cm 62 in / 160 cm
Foot Girth 41 in / 100 cm 43 in / 110 cm 43 in / 110 cm
Price $509.95 $529.95 USD $549.95 USD

Manufacturer's Description

Visit Sierra Designs's BTU -20 page.

Retailers' Descriptions

Here's what other sites are saying:

CLOSEOUTS . The 800 fill power DriDownand#174; insulation in Sierra Designsand#39; -20and#176;F BTU sleeping bag retains more loft and warmth than untreated down when wet. The DriZoneand#174; waterproof protection allows moisture to escape from inside the bag for ventilated and comfortable sleep. Available Colors: BLACK.

- Sierra Trading Post

Stuffed with 800-fill hydrophobic DriDown(TM), the Sierra Designs BTU -20 sleeping bag features a DriZone(TM) waterproof, breathable membrane for comfort in the coldest, wettest environments. Down is widely considered the best insulation available, but when wet it quickly loses loft and the ability to keep you warm; DriDown is treated to resist moisture. Proprietary process treats each individual goose down plume with a molecular-level polymer so the down stays dry longer, lofts better and dries faster than untreated down. DriDown insulation stays dry 10 times longer, retains 170% more loft when exposed to moisture and dries 33% faster than untreated down. DriZone waterproof, breathable fabric allows moisture to escape while keeping rain out; 30-denier polyester lining fabric is comfortable next to skin. Baffle construction keeps down from migrating, eliminating cold spots. 40 in. zipper keeps weight down and won't let out all the warmth when you're getting in and out of the sleeping bag; locking slider is backed by wide, antisnag binding tape. Snag-free zipper tracks prevent the dreaded stuck zipper by creating a barrier between the lining and the zipper track. Fully insulated draft tube backing the zipper keeps body heat in and cold air out. Ergonomic, nonrestrictive hood cradles your head in warmth; use the drawcords to cinch the hood snug around your head. Includes an internal media pocket for your cell phone or alarm clock. Sierra Designs BTU -20 comes with stuff sack and storage bag.


Free Shipping. Sierra Designs BTU -20 Sleeping Bag DECENT FEATURES of the Sierra Designs Men's BTU -20 Degree Sleeping Bag Side-wall, box baffle construction Oversized, ergonomically shaped footbox Microfleece lined foot box Snag-free zipper tracks Internal media pocket Corded hood baffle Draw cord at collar Expedition Jacket Hood Drizone waterproof-breathable shell Anti-microbial liner treatment reduces odor over long uses Zipper draft tube Tuck Stitch construction Includes storage and compression stuff sacks Easy access, ventable, 40in. zipper The SPECS Temperature Rating: -20deg F / -29deg C Zipper Side: Left Material: Fill: 800 Fill-Power Goose Down Shell: 40D Drizone Nylon Ripstop Liner: 30D Polyester The SPECS for Short Trail Weight: 3 lbs 13 oz Shoulder Girth: 60in. Hip Girth: 56in. Footbox Girth: 41in. Fits Up To: 5'6in. Fill Weight: 36 oz Stuff Size: 9in. x 19in. The SPECS for Regular Trail Weight: 4 lbs 1 oz Shoulder Girth: 64in. Hip Girth: 60in. Footbox Girth: 43in. Fits Up To: 6' Fill Weight: 38 oz Stuff Size: 10in. x 20in. The SPECS for Long Trail Weight: 4 lbs 7 oz Shoulder Girth: 66in. Hip Girth: 62in. Footbox Girth: 43in. Fits Up To: 6'6in. Fill Weight: 40 oz Stuff Size: 10in. x 20in.

- Moosejaw

4- Season -20 deg F / -29 deg C With 800-Fill goose down insulation and a waterproof shell, this cold-weather bag is warm, weatherproof and very compressible. Perfect for your next fridgid expedition.

- Rocky Mountain Trail

Sierra Designs BTU -20


The Sierra Designs BTU -20 is not available from the stores we monitor. It was last seen May 10, 2014 at Sierra Trading Post.

If you're looking for a new cold weather down sleeping bag, check out the best reviewed current models.