SKU: 66696539347

Mad River 40 Sleeping Bag (4°C)

Sale price$269.55 Regular price$299.50
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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25

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Description

Mad River 40 Sleeping Bag (4°C)If it aint broke, dont fix it. The Mad River is a packable down mummy bag for the backpacking traditionalist who just wants a good nights sleep after a good day's slog. 650 fill power duck down means this bag packs small yet still lofts up tall, so you can comfortably recharge after a long day on the trail. Chemical free ExpeDry tech delivers forever performance without forever chemicals, permanently helping down dry quickly and maintain loft when

If it ain’t broke, don’t fix it. The Mad River is a packable down mummy bag for the backpacking traditionalist who just wants a good night’s sleep after a good day's slog. 650-fill-power duck down means this bag packs small yet still lofts up tall, so you can comfortably recharge after a long day on the trail. Chemical-free ExpeDry™ tech delivers forever performance without forever chemicals, permanently helping down dry quickly and maintain loft when sweat, humidity, and condensation try to dampen the mood—and the bag’s warming powers. A full-length anti-snag zipper and secondary side zipper give you precision comfort control and blanket-like coverage for changing conditions, sleeping positions, and tent card games. The roomy footbox gives your feet space to breathe, while the insulated draft tube ensures warm air doesn’t drift out when you’re drifting off to sleep. An internal stash pocket keeps valuables like a headlamp or contact lenses secure, while the included storage sack and compression sack ensure this bag is ready to pack down tight from day one.

  • RDS-certified 650-fill-power duck down with ExpeDry™ for lofty, compressible, quick-drying warmth
  • ExpeDry™ is a permanent, chemical-free alternative to DWR (Durable Water Repellent), providing quick-drying, loft-retaining performance in wet and humid conditions
  • Gender-free design: standard length fits sleepers up to 6'0"
  • 100% recycled shell and lining fabrics
  • Full-length, left-side 2-way zipper with an anti-snag slider for improved ventilation, versatility, and easy access
  • Short right-side zipper offers fold-down comfort and additional ventilation
  • Anatomically designed footbox with wrap-around construction provides warmth and roomy comfort
  • Internal stash pocket for contact lenses, headlamp, and valuables
  • Draft collar seals in warmth and prevents heat loss, even when tossing and turning
  • ISO temperature testing adheres to reliable international standards
  • Included storage sack and compression sack let you pack down, cinch up, and head out

Bag Temperature Celsius: 4°C
Bag Temperature Fahrenheit: 40°F
Product Care: Machine Wash Cold, Use Liquid Detergent, Do Not Use Powdered Detergent, Gentle Cycle, Tumble Dry Low, Do Not Iron, Do Not Bleach, Do Not Dry Clean, Do Not Use Fabric Softener, Rinse Twice, Do Not Store Wet
Tested Comfort: 44ºF / 7ºC
Tested Limit: 35ºF /2ºC
Footbox Size: 48.8 in, 124 cm
Hip Girth: 57.9 in, 147 cm
Insulation Material: Duck Down
Insulation Type: Duck Down
Shoulder Girth: 63 in, 159 cm
Stash Pocket: YES
Stuff Sack Size: 11.8 x 6.3 in, 30 x 16 cm
Style Number: M16037
Product Weight: 772.0 g
Zipper Location: Left Zip

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 66696539347

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William harkins
Chelsea, US
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Great ink
I love this brand I was using it a few years ago when I was doing sublimation and am very glad that they are still in business
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Reviewed in the United States on June 6, 2026
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Thankyou love the 522ink works great on my crafting
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Al Brunelle
Grantham, US
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⭐️⭐️⭐️⭐️⭐️ Easy to use and produces vibrant prints
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LPUR
San Leandro, US
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Only Sublimation Ink for Me!!
I recently bought my second set of Hippo Sublimation Ink and continue to be thrilled with the results. This ink has proven to be a fantastic choice for my sublimation projects, delivering on all fronts. Hippo Sublimation Ink works exactly as promised. It sublimates effortlessly onto poly blend items, producing bright, vivid transfers every time. The colors are striking and true to the design, which is crucial for quality sublimation work. The results are consistently impressive, making this ink a reliable option for any project. One of the standout features is the great price. Hippo Sublimation Ink offers excellent value for money compared to other brands. Despite its affordability, it performs just as well—if not better—than more expensive options on the market. Using Hippo Ink in my Epson printer has been a breeze. The ink flows smoothly and doesn’t clog the printer, even after not being used for two weeks!!! I’ve had issues with other brands clogging my printer, leading to frustration and wasted time, not to mention all the maintenance puts wear and tear on the printer. With Hippo, there’s been no such problem, making it a hassle-free choice for sublimation printing. Hippo Sublimation Ink has exceeded my expectations in terms of performance, price, and ease of use. It’s the only ink I will use in my printer from now on. If you’re looking for a high-quality sublimation ink that’s both affordable and reliable, Hippo is an excellent choice. It delivers bright, beautiful transfers and maintains smooth operation without any of the typical issues associated with other brands. Highly recommended!
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Amazing quality and quantity!
The ink was so easy to refill onto the ecotank! The colors come out so bright and viivid!
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Reviewed in the United States on April 7, 2026

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