Katahdin 15°F 625 Fill Power Hydrophobic Sleeping Bag with Advanced Synthetic

Size chart
  • Ships from Nevada

    Ships from Nevada

  • Shipping Time ( 4- 7 days )

    Arrives in 4 - 7 days

  • Shipping Time ( 4- 7 days )

    Orders Over $75 Ship Free

  • Shipping Time ( 4- 7 days )

    Lifetime Warranty


This premium quality Katahdin 15°F 625FP Hydrophobic Sleeping Bag with Advanced Synthetic is the lightest, most compressible down-like synthetic bag built with the highest quality materials available that is honestly priced!



Quandary 15ºF

Snowmass 0ºF

Eolus 15ºF

Eolus 0ºF

Katahdin 0ºF

Katahdin 15ºF

Insulation Type Hydrophobic 650 FP 80/20 Duck Down Hydrophobic 800 FP 90/10 Goose Down 625FP Advanced Synthetic Clusterloft®
Main Feature Warmer 3-Season Bag, Ultralight Value Warmest 4-Season Comfort Lighter Option than the Quandary 15ºF Ultrallight Option for a 0ºF Mummy Down Bag Very warm, very packable mummy bag. Performs better than down when wet. Lightest synthetic mummy bag. Performs better than down when wet.
Comfort Temperature 50ºF / 10ºC 30ºF / -1ºC 50ºF / 10ºC 30ºF / -1ºC 30ºF / -1ºC 50ºF / 10ºC
Comfort Limit 30ºF / -1ºC 15ºF / -10ºC 30ºF / -1ºC 15ºF / -10ºC 15ºF / -10ºC 30ºF / -1ºC
Survival Limit 15ºF / -9ºC 0ºF / -17ºC 15ºF / -9ºC 0ºF / -17ºC 0ºF / -17ºC 15ºF / -9ºC
Total Fill Weight (Short/Regular/Long) 600 / 640 / 690 grams 890 / 930 / 980 grams 560 / 610 / 650 grams 810 / 860 / 910 grams 890 / 1000 / 1140 grams 630 / 690 / 800 grams
Total Pack Weight (Short/Regular/Long) 2.56 / 2.71/ 2.89 lbs 3.23 / 3.38 / 3.56 lbs 2.44 / 2.62 / 2.80 lbs 3.02 / 3.20 / 3.37 lbs 3.23 / 3.38 / 3.56 lbs 2.62 / 2.8 / 3.13 lbs
Compressed Pack Size 7.5" x 10" 8" x 11" 6.5" x 9.5" 7" x 10" 11" x 8" 10" x 7.5"
Shell Fabric / Base DWR-Coated 400T 20D Rip-stop Nylon Fabric / Clusterloft®
  • Professionally designed for thru-hiking, backpacking, and bike packing, this bag boasts superior weight-to-warmth ratio rain or shine and the ultimate multi-purpose sleeping bag for saving space and weight.

    Hyke & Byke products are 3rd Party Tested and IDFL Certified so you know you are getting what you pay for! Our gear has been tested on adventures worldwide by 60,000+ customers and we stand behind it with our Lifetime Warranty!

    Key Features

    HIKE FARTHER with the LIGHTEST SYNTHETIC MUMMY SLEEPING BAG available (Short: 2.63 lbs., Regular: 2.8 lbs. & Long: 3.13 lbs.) for this quality at the price. Compare to other big brand names to see the price difference we achieve through direct-to-consumer sales. Summit any mountain or camp by the summer sea with these compact bags and have room for carrying your favorite fleece blanket or silk liner, goose filled pillow, and pad.

    SAVE SPACE and SHAVE WEIGHT: Filled with 625 Fill Power advanced synthetic, this 15 degree bag is super light, compact, and compares to a 625 fill power Down Bag but has better durability and moisture resistance.

    STAY WARM & DRY: The result of Hydrophobic insulation capabilities and waterproof fabrics - the microscopic air clusters found in our advanced synthetic creates "loft" that traps heat and keeps you warm. Extreme Limit is 15 Degrees F, Lower Limit (men) is 30 Degrees F, and Comfort Limit (women) is 50 Degrees F.

    LONG LASTING DURABILITY: Ultralight water repellent 400T 20 D ripstop nylon fabric liner with double large YKK zippers and anti-snag slider, wide shoulders and large footbox, snag-free velcro, drawstring, horizontal baffles, and compression stuff sack case for storage included. Comes in size Short (Individuals up to 5'6"), Regular (Individuals up to 6'), and Long/Tall/XL (Individuals up to 6'6").


    The Hyke & Byke Difference

    A USA based outdoor gear brand that started small but has quickly made a big impression on outdoor enthusiasts across the country (men, women, and kids alike). Our company's cosmic vision of providing double the value for every person (youth or adult) looking to go outdoors is possible through beating the big brands at cutting costs and connecting with our customers.

    How We Operate to Save You Money

    Our business model revolves around keeping operating costs extremely low to provide premium quality products at the absolute best price. We achieve this through running our business completely cloud based, with no added expenses for servers, commercial property, extra equipment and hardware.

    Other brands charge $350+ for similar bags. Don't pay more just to cover their unnecessarily high overhead and operating expenses.

    Trail Ready

    For all of your outdoor adventures or travels, this bag will become your favorite and most coveted item on the packing list.

    Buy With Confidence and Risk Free - 100% Money Back Guarantee - If you don't love your new bag, simply return it within 30 days of delivery for a full refund! Click Add To Cart now to get your go-to bag today!

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    Hyke & Byke products are guaranteed for life to the original owner against manufacturing defects in materials and workmanship for the lifetime of the product. We are proud of the quality of our products and stand behind them with our lifetime warranty. To learn more about our Lifetime Warranty Click Here.

    If a Hyke & Byke product covered by this warranty fails due to a manufacturing defect we will replace the product (limited to 1 full replacement).

    This warranty does not cover damage caused by accident, improper care, negligence, alteration, abuse, misuse, or an act of nature (fire, flood, moths, etc.), snags, stains, pilling, discoloration from the natural breakdown of colors and materials over extended time and use, deterioration, burns, or damage from normal wear and tear. For damage not covered under warranty, we will do our best to inform the customer of the most economic means of repairing the product. For many such issues, we recommend Gear Aid products available on Amazon.

  • We want you to love your Hyke & Byke gear as much as we love designing and making it! If for any reason you are not completely satisfied with your purchase, we gladly accept returns on orders shipped within the US within 30-days* of purchase. For items to be returned, they must be purchased on www.HykeAndByke.com (see below for Amazon orders) unworn, unwashed, still have tags attached and be in sell-able condition. To learn more about our Returns and Exchange policy Click Here.