Here's what other sites are saying:
Features of the Mountain Equipment Helium 400 Sleeping Bag Helium 20D outer shell is very light and Highly breathable 385g of 90-10 Pure Duck Down with a minimum fill power of 700 Maximises thermal efficiency Slanted Box-Wall baffles throughout Mid-level side seams 5 Baffle anatomically shaped hood 4 Baffle anatomically shaped and offset foot-box Full length Gemini zip baffle and integrated collar with Lode Lock closure Supplied with waterproof roll-top stuff-sack and storage cube
- Moosejaw refers to the men's version
Whether you define summer touring as bikepacking through Moab or backpacking through the Wind Rivers, the Helium 400 Sleeping Bag by Mountain Equipment is ultralight for carrying across multiple miles. The lofty down insulation keeps you warm during cool nights in the high desert and at high altitudes in the alpine through summer. Durable, yet lightweight Helium 20 denier fabric ensures protection against wind and traps in your body heat. And the baffled Gemini zipper and Lode Lock collar provides an extra prevention against heat loss. This thermal-efficient bag is designed to make for an efficient summer tour.
- Backcountry.com refers to the men's version
Shop Mountain Equipment Helium 400 Sleeping Bag 725 Fill Power Duck Down-ME-001933-XL-LZ with Be The First To Review + Free Shipping over $49.
- CampSaver.com refers to the men's version
Insulated with high-loft 725-fill-power duck down, the Mountain Equipment Helium 400 Sleeping Bag provides 3-season comfort for climbers and backpackers.
- REI refers to the men's version
Why waste precious space in your pack with unnecessary materials. The Helium 400 +23 Down Sleeping Bag from Mountain Equipment is highly compressible and will leave you with plenty of room to spare. Ultralight fabrics and box baffles filled with 725 fill down significantly reduce the overall weight of the bag while giving you top of the line comfort. The anatomically shaped foot box with a 4 baffle end allows your feet to rest comfortably without compressing the down so you stay warmer. A shaped hood and neck collar ensure that you retain as much heat as possible so you get a good night's sleep.
- Mountain Gear refers to the men's version