Marmot Phase

With a 20°F temperature rating and 850+ fill power goose down, this bag is designed for three-season use. It is well-suited for chilly shoulder-season trips, provided you pair it with an insulated sleeping pad to prevent heat loss from the ground.

The down insulation is treated to resist moisture, which helps it maintain its loft and thermal efficiency if you encounter condensation or humid air in your tent. While it is not waterproof, this treatment provides a crucial buffer against dampness that would otherwise collapse untreated down.

This bag is designed for users up to 66 inches, or 5'6". If you are exactly 5'6", you will fit, but you may find the fit quite snug; if you prefer extra room for movement or wearing layers, you might want to consider a bag with a slightly longer length.

The slim mummy cut reduces the amount of dead air space inside the bag, which allows your body heat to warm the interior more quickly and efficiently. This design prioritizes weight savings and thermal performance over extra wiggle room.

The bag features a snagless draft tube specifically designed to prevent the fabric from catching in the zipper track. While no zipper is entirely immune to snagging, this construction significantly reduces the frustration of getting in and out quickly.

Yes, it is sized perfectly for small essentials like a headlamp, lip balm, or earplugs. Keeping these items inside the bag prevents them from getting lost in the dark and keeps batteries warmer in cold temperatures, which helps them last longer.