Big Agnes Sidewinder Camp 35°

The Sidewinder Camp 35° is a synthetic summer bag rated to 2°C, meant for warmer nights from late spring through early autumn. Like the rest of the Sidewinder line, it uses a patent-pending 360° cocoon cut that follows the body of side sleepers, so the FireLine ECO recycled-polyester insulation stays evenly distributed around the body when rolling over instead of bunching under the back, a common complaint with conventional bags. At 1188 g with 784 g of fill, it is a bulkier bag that packs down to 19×19 cm — an acceptable trade-off for summer camping but less so for weight-conscious multi-day treks. The two-way center zipper makes venting easy on warm nights, while the adjustable, contoured hood and draft collar add comfort as temperatures drop toward the limit rating. The nylon ripstop shell carries a DWR finish, and the recycled, PFC-free insulation makes it a sensible warm-weather choice for side sleepers looking to avoid the shoulder pressure points typical of standard mummy bags.