One Sleep System, Three Ways to Use It. Your Ultimate Bag for Every Season. Introducing the ATEPA BULWARK 300 - the sleeping bag that adapts to your adventure. Unlike rigid mummy bags, our innovative 3-in-1 system gives you the freedom to use it as a standalone top quilt, attach it to your favorite sleeping pad, or zip it up as a traditional sleeping bag. Filled with a 300g blend of 650+ fill power down and recycled cotton, this versatile bag is built for backpackers, campers, and outdoor enthusiasts who demand comfort, adaptability, and quality in any season. Why the 3-in-1 BULWARK 300 is Your Smartest Gear Choice: UNIVERSAL 3-IN-1 CONVERTIBLE DESIGNStop buying separate gear for different trips. The BULWARK 300 is three systems in one: A Top Quilt: Detach and use the top as a breathable, lightweight blanket for warm nights or van camping. A Pad Cover: Securely attach the integrated sleeve to your existing inflatable pad (standard 20"-25" width) for a stable, integrated sleep system. A Full Sleeping Bag: Zip it up completely for traditional, cozy protection on cooler nights. PERFECTLY BALANCED FOR 3-SEASON COMFORTEngineered with a 51% down / 49% recycled cotton blend, this bag offers the perfect balance of loft, moisture resistance, and eco-conscious materials. It&';s comfort-rated to 53.6AdegF (12AdegC) with a lower limit of 44.6AdegF (7AdegC), making it your go-to for spring, summer, and fall adventures where nights can be unpredictable. DESIGNED FOR REAL-WORLD COMFORT & DURABILITY Expanded 3D Foot Box: No more cramped toes. Our foot box design gives your feet room to move, improving circulation and overnight comfort. Stays-In-Place Baffles: Cross-quilting and 3D baffle construction prevent down from shifting, ensuring even warmth distribution all night long. Full-Zip Versatility: Unzip it completely for use as a blanket, or zip it up with the draft flap and adjustable hood for a snug, windproof seal. Eco-Tough Materials: Made with a 20D 400T recycled nylon shell (water-repellent & down-proof) that&';s durable, easy to clean, and kinder to the planet. ULTRALIGHT & COMPACT FOR BACKPACKERSWeighing only 2.5 lbs (1.15 kg) and compressing to 11.8" x 6.7", the BULWARK 300 packs down small without sacrificing warmth or features. The included 210D compression sack makes packing effortless. Technical Specifications: Temperature Rating (ISO): Comfort: 53.6AdegF (12AdegC) | Limit: 44.6AdegF (7AdegC) | Extreme: 26.6AdegF (-3AdegC) Fill: 300g Coldmaster(TM) Blend (51% 650+ FP Duck Down, 49% Recycled Cotton) Weight: 2.5 lbs (1.15 kg) Packed Size: 11.8" x 6.7" diameter (30 x 17 cm) Unfolded Size: 78.7" x 33.5" (200 x 85 cm) Shape: Semi-Rectangular with 3D Foot Box Fabrics: 20D 400T Recycled Nylon (Shell & Liner) Included: Sleeping Bag, Compression Sack Ideal For: Versatile Backpackers who camp in varying conditions and want one adaptable bag. Pad Users who hate sliding off their pad and want a secure, integrated sleep setup. Minimalist Travelers who need a compact bag that can also be a quilt or blanket. Eco-Conscious Adventurers who prioritize performance and sustainability. Stop limiting yourself to one type of sleep. The ATEPA BULWARK 300 3-in-1 Convertible System is the only bag you&';ll need for most of your adventures. Choose Your Configuration. Add to Cart and Experience Versatile Comfort!