The versatility of Free-Flow Zip system plus the comfort of the spacious cut makes the Trek a go-to choice for campers and long-distance travelers alike
+ View tech specsIf you've ever wished for a less-constrictive sleeping bag that keeps you comfortable in a variety of cool-to-warm conditions, the Trek may become your go-to bag. The Free-Flow Zip system allows you to open the bag sequentially for ventilation up to the point where it is opened flat as a quilt - you can even secure the snaps around your shoulders, open the footbox zipper and 'wear' the Trek around camp. 650+ fillpower duck down with a non-PFAS Ultra-Dry Down treatment keep you insulated in damper conditions. Slip an Aeros Pillow into the hood and enjoy a great night's sleep - wherever your travels take you.
-1°C Regular | -1°C Long | -9°C Regular | -9°C Long | -18°C Regular | -18°C Long | |
---|---|---|---|---|---|---|
Bag Weight | 1119g | 1253g | 1436g | 1611g | 1895g | 2098g |
Compressed Volume | 8.2 L | 8.8 L | 10.6 L | 12.2 L | 14.2 L | 15.9 L15.9 L |
Compression Sack | 13 L | 13 L | 20 L | 20 L | 26 L | 26 L |
Fill Weight | 380 g | 437 g | 635 g | 735 g | 1000 g | 1163 g |
Fits Up To Height | 185 cm | 198 cm | 185 cm | 198 cm | 185 cm | 198 cm |
Temperature Rating (ISO Lower Limit) | -1°C | -1°C | -9°C | -9°C | -18°C | -18°C |
Women's Temp Rating (ISO Comfort) | 3°C | 3°C | -3°C | -3°C | -11°C | -11°C |
The Trek has a broader cut and is intended for travel/camping/some backpacking. The Ascent is a more technical bag for ambitious backcountry use.
Yes - the unisex and Women's Trek can be coupled (Unisex Trek will zip to most STS Women's bags)
Yes! The Free-Flow zipper system provides unparalleled ventilation and allows the bag to be opened flat as a quilt