Bivy it up.
The Twilight Bivy from Black Diamond is a 4-season bivy built from water-resistant, breathable, and lightweight NanoShield fabric that packs down into a very compact, convenient size so it's easy to bring along on bike- or backpacking trips to use as an emergency shelter or a sleeping bag cover. The shoulder-height zippered entry enables easy in/out and use while sitting upright.
Features & Specs:
- Low weight frameless construction.
- Proprietary breathable NanoShield single-wall fabric.
- 4-season design.
- Weight: ~290g ((10oz).
- Area: 1.75 m² (18.75 sq ft).
- Dimensions: 208 x 84 cm (82 x 33 in).
- Packed Size:
- 8 x 13 cm (3 x 5 in).