The North Face The One Bag

The bag consists of three layers that zip together. You can use the full system for 5°F, remove the top layer for 20°F, or use just the bottom layer for 40°F, allowing you to adjust your warmth based on the specific conditions.

The maximum user height for this bag is 78 inches, or 6'6". If you are 6'4", you will fit comfortably, though you may have slightly less room to stretch out compared to a shorter user.

Combining materials gives you the best of both worlds: the 800-fill goose down provides superior warmth-to-weight ratio and compressibility, while the synthetic insulation maintains its loft and thermal properties even if it gets damp.

Yes, the design is highly functional. The removable mid-layer is designed to be worn as a shawl around camp, and the bottom layer can be rolled up to serve as a pillow, which helps reduce the amount of extra gear you need to pack.

The shell is made from 20-denier nylon and is water-resistant, which protects against light moisture and condensation. However, it is not waterproof, so you should still use a ground tarp or tent footprint to keep the bag dry in wet environments.

While it is a mummy-style bag, which is designed to trap heat efficiently, the modular nature of the layers allows for a slightly more customizable fit than a traditional, single-piece mummy bag. If you prefer more room, you can unzip the layers to create a less confined sleeping space.