Sea to Summit Ascent Down Sleeping Bag Rainforest Green
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Sea to Summit Ascent Down Sleeping Bag
The Sea to Summit Ascent Down Sleeping Bag is built for riders and adventurers who want one bag to handle it all. Designed as a true three-season backcountry sleeping bag, the Ascent blends warmth, versatility, and comfort with a relaxed fit that makes it as enjoyable at camp as it is deep in the backcountry.
At the core is 750+ fill power Ultra-Dry goose down, delivering lightweight warmth and reliable performance even in damp conditions. When temperatures drop, cinch the technical hood, seal in heat with the draft-tube protected zippers, and stay comfortable through cold nights.
As conditions warm up, the Ascent really shines. The innovative Free-Flow Zip system allows multiple ventilation configurations—open it partially for airflow, fully unzip to use it as a quilt, or vent the footbox to fine-tune your comfort.
With a relaxed mummy fit, the Ascent offers more room to move than traditional ultralight bags while still maintaining thermal efficiency. Box baffle construction and vertical chest baffles help keep insulation evenly distributed, maximizing warmth where it matters most.
Whether you're bikepacking, backpacking, or setting up a comfortable camp after a long day on the trail, the Ascent is designed to adapt—so you don’t have to pack multiple bags.
Key Features
- 750+ fill power Ultra-Dry Down for lightweight warmth and moisture resistance
- Free-Flow Zip system for unmatched ventilation and multi-use versatility
- True 3-season performance for a wide range of conditions
- Relaxed mummy fit for comfort without sacrificing efficiency
- Box baffle construction with vertical torso baffles to prevent down shift
- 20D recycled nylon shell & liner with DWR finish for durability and weather resistance
- Convertible design—use as a sleeping bag, quilt, or wearable at camp
- Zip coupling compatible with select Sea to Summit women’s bags
Specs (Regular – Approx.)
- Best Use: Backpacking / Bikepacking
- Temperature Rating: ~30°F / -1°C (varies by model)
- Weight: ~1 lb 11.6 oz (782 g)
- Compressed Volume: ~5.5L
If you want one sleeping bag that can handle everything from cool summer nights to shoulder-season adventures, the Ascent lives up to its name—climbing above typical single-purpose designs with true all-around performance.
If you don't see exactly what you need or have questions about any product, contact us and we'll do our best to answer your questions and help you find what you need.
