Marmot Trestles

The SpiraFil LT synthetic insulation is designed to retain its loft and thermal efficiency even when wet, unlike down, which loses its insulating properties when damp. This makes the Trestles a more reliable choice for humid environments or unpredictable weather where moisture management is a priority.

The semi-rectangular shape offers a balance between the heat-trapping efficiency of a mummy bag and the roominess of a rectangular bag. It provides extra space for your legs and shoulders, making it a better option for side sleepers or those who feel restricted in traditional mummy-style bags.

With a temperature rating of 15 degrees Fahrenheit, this bag is well-suited for late autumn or early winter camping. However, always consider your personal cold tolerance and the R-value of your sleeping pad, as the ground is a major source of heat loss.

The secondary zipper allows you to fold down the top section of the bag, similar to a comforter. This provides extra ventilation on warmer nights or when you want to sit up and read without fully exiting the bag.

Yes, the bag is designed to accommodate users up to 72 inches (6 feet) tall. If you are exactly 6 feet, you will have a snug fit, but the semi-rectangular shape provides enough internal volume to prevent feeling overly compressed.

The Trestles weighs 4.5 lbs, which is standard for a synthetic bag with this temperature rating. While it is heavier and bulkier than a comparable down bag, it comes with a compression sack to help you shrink its packed size for easier transport in your pack.