Hyke & Byke Snowmass 0°F Cold Weather Mummy Hiking & Backpacking Sleeping Bag - Duck Down 650 FP 4 Season Sleeping Bags for Adults - Ultralight with Compression Stuff Sack
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Color: Blue
Size: Long
Features
- Inner and outer nylon shell with horizontal baffles that allow the adjustment of the 650 fill power insulation to move where the fill is needed the most.
- 0 Degree Sleeping Bag - The Snowmass mummy sleeping bag is packed with naturally hydrophobic and warmth-trapping Duck Down equal to 650 Fill Power. Incredible compressability and exceptional warmth. Fully baffled construction with no sewn-through areas to eliminate cold spots
- Save Space & Shave Weight - This 4 Season winter sleeping bag is professionally designed for thru-hiking, backpacking and camping in temperatures down to zero degrees Fahrenheit. The Snowmass cold weather sleeping bag boasts a superior warmth-to-weight ratio at only 3.38 lbs. (Regular Size)
- Hydrophobic & Water-resistant - The 400T 20D ripstop nylon liner is coated with water repellant DWR, and the superior YKK zippers are also more water-resistant than typical zippers
- Camping Sleeping Bags - Uses a differential cut and fill to get the most warmth-trapping down to the most important parts of the bag. Includes an internal storage pocket and a compression stuff sack that packs your Snowmass compact sleeping bag down to just 13 inches long and 8 inches in diameter
- Hyke & Byke Sleeping Bags - USA-based brand offers a collection of premium quality camping accessories and gear suitable for adults and children alike for all your adventures in the Great Outdoors
Brand: Hyke & Byke
Color: Blue
Occupancy: 1 Person
Shape: Mummy
Seasons: Winter
Age Range (Description): Adult
Sport: Camping & Hiking
Special Feature: Incredible Compressibility, Superior Warmth-to-Weight Ratio
Material: Down, Nylon
Fill Material: Down
Brand: Hyke & Byke
Color: Blue
Occupancy: 1 Person
Shape: Mummy
Seasons: Winter
Age Range (Description): Adult
Sport: Camping & Hiking
Special Feature: Incredible Compressibility, Superior Warmth-to-Weight Ratio
Material: Down, Nylon
Fill Material: Down
Product Dimensions: 87"L x 32"W
Closure Type: Zipper
Item Weight: 3.56 Pounds
Outer Material: Nylon
Fabric Type: Inner and outer nylon shell with horizontal baffles that allow the adjustment of the 650 fill power insulation to move where the fill is needed the most.
Size: Long
Maximum Height Recommendation: 7.25 Feet
UPC: 764804205909
Global Trade Identification Number: 09
Item Package Dimensions L x W x H: 15.75 x 7 x 7 inches
Package Weight: 1.72 Kilograms
Item Dimensions LxWxH: 11 x 8 x 8 inches
Brand Name: Hyke & Byke
Suggested Users: unisex-adult
Manufacturer: Hyke & Byke
Part Number: HB-650FP-0F
Fill Material Type: Down
Date First Available: October 12, 2016
Frequently asked questions
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To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Blue
Size: Long
Bought this bag in 2019 for some mountaineering and cold weather camping/backpacking. This is a damn good sleeping bag with incredible value for the money. I've slept in temps as low as 5°F or -15°C and was reliably kept warm enough to sleep pretty well. It's very packable and lightweight and also durable. I've had this for 5 years now, it's been soaked in freezing cold water and survived rugged use. This bag still provides superb warmth and lofts up every time. Love the added details like the inner collar and abilities to cinch it around yourself. It's a mummy bag that also doesn't feel super cramped and I'm 6'2 200+. I love this bag and will definitely buy another one to replace if this one ever goes bad.
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Reviewed in the United States on July 29, 2024 by Jonathan Jonathan
This bag is by far one of the warmest bags I've ever purchased for backpacking. It has a few drawbacks, but for a TRUE 0F bag it's spot on. Here's what I've done to test it so far. First, I took a backpacking trip in early March (Highs: 40F, Lows: 20F) around Greenleaf State Park in Braggs, OK. It's a 28 mile loop on some rough terrain. It was overcast the entire time, and a light mist seemed to be always falling. None the less, we pushed on and camped the first night within a stones throw of the lake. In hindsight, we should of pushed away from the lake a bit more due to the wind. Within an hour of sunset, the temperature plummeted. We had setup our tents and I had laid out my sleeping bag in my tent to allow it time to fluff up and expand. One thing to note: This bag REALLY puffs up once it's out of the compression sack. Crazy amounts of loft. OK - so after standing by the fire for a few hours the 12 mile day took it's toll and I fumbled off to my tent to try and get some sleep. Normally, I would be crawling into my Sea to Summit Spark II 35F bag, which only has a 1/4 zip (and is a huge pain to get into), and was pleasantly surprised to find that my bag had a full length zipper that would open from the top or bottom. I didn't realize how important this was until later. I crawled in and immediately found the texture of the fabric to be a bit tacky to the touch. I figured it was my cold skin, so I slid down into the bag. At first, it felt like sliding into an ice sickle. After about 30 seconds though, the bag started to warm up and the inner lining of the bag felt much better. Then, almost all of a sudden, I was WAY too hot. I don't mean just a little "let me open the top a little" kind of hot, I mean I almost started sweating within 3-4 minutes of getting into the bag. Holy cow! This is by far the warmest bag I've ever been in. Most of my other bags are 45F down to 35F with very little options to regulate heat other than sticking an arm out or unzipping from the top. Luckily, this bag had a foot zipper that I was able to unzip about 2-3 inches and that regulated the heat perfectly. The next two nights went the same way and I'm hooked. The biggest issue I have is getting out of the bag on cold mornings. I just don't want to. Ha! A+ bag! Highly reccomend. It's a bit on the heavy side, but for the price you can't beat this bag anywhere.
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Reviewed in the United States on March 4, 2018 by AK83
I wanted to fully test the bag in cold weather before I wrote my review. I tested the bag in 19.1 degrees temps and I then measured the inside temp of the bag at my stomach area and it was 80.4 degrees! The inside bag thermometer was not in contact with my body, so the thermometer would not give me false readings. I was only in the bag for 30 minutes when I took the temp readings. This is an impressive bag for the money. I only have one other sleeping bag that will give me those types of results and that is my Military Extreme Cold Weather Sleeping Bag that has 2 inner sleeping bags and a bivy bag. However, the military bag weights about 10 lbs, so it is not practical to carry for backpacking. This down bag weights 3.5 lbs! I ordered the regular size and it is snug on me in the shoulder area, but not too tight to want to upgrade to the "long" model. I am 6'1'' and 215lbs and have an athletic frame. If you are bigger than that, then I would order the bigger version because the sleeping bag will not zip up in the shoulder area. The bag is a great quality product and is designed to be light weight, so don't expect it to look like a military sleeping bag and built like a tank. This bag will be perfect for all my cold weather backpacking trips.
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Reviewed in the United States on January 12, 2017 by ICtracks
This is very very good down bag for the $$ , We went scout snow cave camping. Temps were in low teens at 2000 ft elevation near Mt Hood. My Son slept in this bag, inside of a US Military Gortex Bivy with a Klymit Airpad with Mylar reflective surface Sandwiched Between bag and Bivy. We replaced the original Military Black Sleeping bag with the Hyke & Byke Snowmass 0. He slept on the Snow and ice directly with this gear. He was warm and comfortable thru the night. The bag warmed up quickly and the Snoring Commenced. as discussed else wheres the zipper is a weak point. The Nylon that is used for Lining the Zipper path is to light weight and 1/2" to narrow. This allows the zipper to Pull the bag nylon into the zipper as it is being pulled closed, thus jamming, The material is fairly tough but will fail over time and cause a feather leak. The learned technique it to hold your index finger as a guide and separator for the bag material while zipping it up. This keeps the soft light material out of the zipper path a heavier wider material to line the Zipper path would remedy this trouble point. Other wise excellent warmth and air trapping comfort. Guards Red Color is terrific .
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Reviewed in the United States on February 12, 2017 by Techweenie