Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
You'll be taken to BroadOut to complete your purchase.
Hunter's Outpost earns a commission from affiliate links at no extra cost to you.
SKU: atepa-bulwark-300-down-sleeping-bag-envelope-with-hood
Built for weekend-style camping, this envelope sleeping bag is aimed at hunters and outdoor users who want a flexible sleep system rather than a minimalist mummy bag. It can be used as a sleeping bag, blanket, or cushion cover thanks to the side and bottom zippers, while the hood, adjustable drawstring, and zipper wind-blocking strip add practical comfort in cooler conditions. The 300g down-and-cotton fill is paired with 20D 400T recycled nylon taffeta and a water-repellent finish, giving it a balanced mix of warmth, packability, and easy care. At 1.15 kg, it is a straightforward option for base camp, vehicle camping, or any trip where comfort and versatility matter more than shaving every ounce.
Versatile 3-in-1
Design can be used as
Side Bottom
Zippers add flexible use options
300g Down
Cotton filling is designed for
Adjustable Drawstring
Brim helps tailor the fit
Compression Outer
Bag supports easier packing and
| Breathability | Yes |
|---|---|
| Collar Zipper Tab | Yes |
| Compression Bag | 210D Oxford cloth compression outer bag |
| Drawstring | Adjustable drawstring |
| Easy To Clean | Yes |
| Fabric | 20D 400T Recycled Nylon Taffeta (Downproof treated, WaterRepellent Grade 4) |
| Filling | Coldmaster(TM) Down 300g |
| Foot Compartment | Three-dimensional foot compartment |
| Lining | Contrasting color lining |
| Lower Piece Use | Cushion cover |
| Moisture Proof | Yes |
| Quilting | New quilting thread design |
| Storage Size | 30 x 17 cm / 11.8 x 6.7 in |
| Structure | Inverted trapezoidal structure |
| Temperature Range | 12AdegC/7AdegC/-3AdegC (53.6AdegF/44.6AdegF/26.6AdegF) |
| Unfolded Size | 78.7 x 33.5 inches |
| Upper Piece Use | Single blanket |
| Use Type | 3-in-1 sleeping bag |
| Water Repellent | Yes |
| Weight | 1.15 kg (2.5 lbs) |
| Windproof Design | Zipper wind-blocking strip |
| Zippers | Side and bottom zippers |
The listed temperature range is 12°C / 7°C / -3°C, which is shown as 53.6°F / 44.6°F / 26.6°F.
Yes. The description says it is a 3-in-1 sleeping bag, with the upper piece usable as a single blanket and the lower piece usable as a cushion cover. It also notes side and bottom zippers for separate use as a blanket or cushion cover.
The storage size is listed as 30 x 17 cm / 11.8 x 6.7 in, and the unfolded size is 78.7 x 33.5 inches.
The fabric is listed as 20D 400T recycled nylon taffeta with downproof treatment and a water-repellent grade 4 finish. The filling is listed as Coldmaster(TM) Down 300g, and the description also mentions 300g 90 white duck down plus renewable cotton.
The product includes a 210D Oxford cloth compression outer bag for storage and portability, and the listed weight is 1.15 kg / 2.5 lbs.