The Marmot Women's Trestles 30 Sleeping Bag is a synthetic sleeping bag for backpacking. Versatile and cozy on 30°F; nights, it's packed with Spirafil LT for lightweight comfort that also resists moisture. An easy pick when you're expecting damp environments. A full length zipper on one side with a second zipper on the other that allows for the top to fold down to quickly adjust temperature and coziness. Stash a phone or headlamp in the zippered pocket for quick access in the middle of the night or early mornings. Features of the Marmot Women's Trestles 30 Sleeping Bag Fold-down second zipper provides added ventilation Easy access Anti-snag slider reduces snagging Anatomically 3D footbox increases the Insulation and room for your feet, for more warmth and comfort SpiraFil High loft Insulation for maximum warmth and durability EN tested Combination wave construction top provides maximum loft and warmth Blanket construction bottom for the best warmth