Hamelin Sleeping Bag: 15F Syntehtic
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Hamelin 15F Sleeping Bag blends warmth, comfort, and versatility with recycled synthetic insulation
What Our Gearhead® Experts Are Saying:
"I love how the Hamelin Sleeping Bag balances warmth and comfort for backpacking trips. The relaxed mummy fit gives me room to move without feeling constricted, and the Free Flow zipper system is a game-changer for ventilation. Whether it's chilly nights at camp or damp conditions in the backcountry, the synthetic insulation keeps me warm and dry. Plus, the recycled materials make it a sustainable choice without sacrificing performance."
A good night’s sleep is essential when exploring the backcountry, and the Hamelin 15F Sleeping Bag ensures just that. Designed for adventurers who prioritize comfort without compromising warmth, this bag features a relaxed mummy fit that allows for natural movement while keeping body heat trapped inside.
Constructed with 100% RCS-certified recycled synthetic insulation, it efficiently retains warmth, even in damp conditions, making it a reliable choice for multi-season camping. The Free Flow zipper system adds unmatched versatility, allowing airflow when needed while extending through the footbox for added comfort. Whether we’re setting up camp in the mountains or by the coast, the Hamelin delivers a cozy retreat at the end of the day.
Details
- Versatile sleeping bag designed for backpacking and multi-season camping
- Recycled synthetic insulation retains warmth even in wet conditions
- Relaxed mummy fit offers extra room for a comfortable night's sleep
- Free Flow zipper system allows for customizable ventilation and easy temperature control
- Bluesign-approved, PFC-free shell for sustainability and durability
- Anatomically-shaped footbox prevents cold spots for all-night warmth
- Item #STSZ0BE
- Responsible Collection
- Recycled/Repurposed, Responsibly Sourced (insulation), Bluesign Approved (fabric)
- Material
- [face fabric] 50D recycled polyester, PFC-free DWR finish, [lining] 20D recycled polyester
- Insulation
- 100% RCS-certified recycled synthetic
- Shape
- relaxed mummy
- Zipper
- full-length
- Max User Height
- [regular] , [long]
- Shoulder Circumference
- [regular] 62.2in, [long] 66.1in
- Hip Circumference
- [regular] 57.5in, [long] 61.4in
- Foot Circumference
- [regular] 46.8in, [long] 50.8in
- Bag Length
- regular, long
- Draft Tube
- full-length
- Venting
- zippered footbox, 1/2-zip
- Fill Weight
- [regular] 2lb 10.7oz, [long] 3lb 0.5oz
- Degree
- 15F
- European Norm/ISO Comfort Rating
- 27F
- European Norm/ISO Lower Limit Rating
- 15F
- Stuff Sack
- included
- Claimed Weight
- [regular] 3lb 9.4oz, [long] 4lb 0.8oz
- Activity
- weekend camping, backpacking
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4 based on 6 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageJune 10, 2025
Better than Expected!
[This review was collected as part of a promotion.] I have owned a wide variety of sleeping bags in my 50+ years of hiking / bike touring. For the money, this bag is hard to beat. Well thought out, with many extra features - from the double zip to the fold open/ quilt stye, to the hang loops to help facilitate drying. I love my down bags, but when the forecast calls for rain, I will always pack a synthetic filled bag. Posted temp range is spot on - with just an ensolite / foam pad, and a light base layer, I slept comfortable down into the mid 30s.
Originally reviewed on Sea to Summit
June 1, 2025
Solid
[This review was collected as part of a promotion.] I really like the space in this bag. It's roomy and compresses well for a synthetic. Good options for ventilationđź‘Ť
Originally reviewed on Sea to Summit
May 20, 2025
Large, Heavy and No Practical Use. . . Pass
[This review was collected as part of a promotion.] I waited to write this review until I had used this bag a few times, but my initial impression of disappointment remained unchanged. . . The bag has an interesting zipper config that works well, but that is the only pro going for it. . . The bag is too large and heavy for any practical use other than an inhome sleepover or maybe car-camping. The bag does not compress well and is cumbersome. The bags size and weight to heat rating is horrible. The shape is odd and the zippers rub your elbows. I am sorry Sea to Summit, but this bag is a major swing and a miss. Hard Pass on this one and I hope Sea to Summit will do better going forward.
Originally reviewed on Sea to Summit
May 17, 2025
Great roomy bag
[This review was collected as part of a promotion.] I used the 15 degree bag and enjoyed it. This bag is roomy. I slept well as a broad-shouldered 72' man, which is not the norm. I've spent 15 nights in it in temps ranging from 20s to 50s. It was comfortable in all temps, with plenty of venting options if it was too warm and mummy option for the cooler nights. The full zip allowed me to get some fresh air cleansing. I don't have any cons to speak of. Happy to add it to my sleeping quiver.
Originally reviewed on Sea to Summit
May 6, 2025
Hamelin sleeping bag
[This review was collected as part of a promotion.] Very good quality however the comfort is lacking. It's formed in a way to be closer to the body but it's very difficult to move around in. I wish it was wider
Originally reviewed on Sea to Summit
April 13, 2025
Great roomy , and warm
[This review was collected as part of a promotion.] Used this recently for several days with low temperatures around forty, and actually opened the bag to be cool enough. I’m claustrophobic so the extra room is appreciated too. Well built and well designed.
Originally reviewed on Sea to Summit
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