Marmot Trestles Sleeping Bag

Synthetic insulation is specifically designed to retain its loft and warmth even when damp, making it a reliable choice for humid climates or unpredictable weather where down might lose its effectiveness.

The women-specific fit is tailored to provide extra insulation in key areas where women tend to lose heat faster, while also adjusting the internal dimensions to better match a female frame for improved thermal efficiency.

With a 15°F temperature rating, this bag is classified as a 3-season sleeping bag. It is well-suited for late autumn or early spring trips, but you may need additional layers or a warmer bag if you are camping in true sub-zero winter conditions.

The Trestles has a compressed volume of 14.1 liters. While synthetic bags are generally bulkier than down equivalents, this volume is manageable for most standard backpacking packs.

The Trestles features a full-length, two-way zipper, but because this is a women-specific mummy bag, it is designed primarily for individual use. Zipping it to a different model or another mummy bag can be difficult and may compromise the draft collar's effectiveness.

The 3D footbox is shaped to allow your feet to rest in a natural position rather than being compressed against the bottom of the bag. This extra room prevents your feet from pushing against the insulation, which keeps the material lofted and warm.