Marmot Trestles Sleeping Bag

The Trestles uses high-loft synthetic insulation specifically designed to retain its loft and warmth even when damp. While down is lighter and more compressible, this synthetic fill is the better choice if you frequently camp in humid, rainy, or unpredictable climates where keeping your gear dry is a challenge.

This fit is tailored to be slightly wider in the hips and narrower in the shoulders compared to unisex models. It also concentrates the insulation in key areas to better match female physiology, ensuring you stay warmer where you need it most.

With a 15°F temperature rating, this is a robust three-season bag. While it can handle late autumn or early spring cold snaps, it is not designed for deep winter expeditions where temperatures consistently drop well below freezing.

The secondary zipper allows you to fold down the top portion of the bag like a comforter. It is a great feature for temperature regulation, letting you vent excess heat on milder nights without having to unzip the entire bag.

Yes, the bag features an anatomically designed 3D footbox. This construction provides extra space for your feet to sit in a natural position rather than being compressed against the bottom of the bag, which helps prevent cold spots.

The Trestles has a compressed volume of 14.1 liters. While it is not as packable as a high-end down bag, it is manageable for most backpacking trips, provided you use a quality compression sack to maximize space.