Sea to Summit Trailhead ThII Sleeping Bag

A 2.5-season rating means this bag is designed to keep you comfortable from late spring through early autumn. It provides enough insulation for chilly nights but isn't built for the freezing temperatures of deep winter.

Yes. The full-length zipper extends all the way through the foot box, allowing you to unzip the bag completely and lay it flat. It functions just like a standard camping quilt, which is great for warmer nights when you don't want to be fully enclosed.

The tapered-rectangular cut offers more room in the shoulders and hips than a traditional mummy bag, making it a better choice if you tend to toss and turn or dislike the restrictive feeling of tighter bags. You get the warmth efficiency of a tapered design with significantly more freedom of movement.

While synthetic insulation is generally bulkier than down, the Trailhead ThII uses WaveLoft construction to trap air efficiently without excessive volume. It comes with a compression sack that helps you shrink the packed size down to a manageable level for your pack.

The shell is treated with a PFC-free DWR (Durable Water Repellent) finish, which helps it shed light moisture and condensation. While it isn't waterproof, it will keep you dry during light morning dew or damp tent conditions.