Four Seasons. One Sleeping Bag.The Jungle King CY0901 Mummy Sleeping Bag is built for campers who don’t let the calendar dictate their adventures. With a waterproof polyester terylene outer shell, four-holes cotton fill, and a spliceable double design, this bag handles spring showers, summer nights, autumn chills, and mild winter conditions with equal confidence. Available in four fill weights to match your exact temperature needs.Key Features 4-Season Versatility – Engineered for year-round camping use Waterproof Polyester Terylene Shell – Repels moisture and light rain Four-Holes Cotton Fill – Breathable insulation that regulates temperature effectively Polyester Pongee Lining – Soft, smooth interior for comfortable sleep Spliceable Double Design – Connect two bags for couples use 220cm Length – Accommodates taller users comfortably 4 Fill Weight Options – 0.85kg, 1.15kg, 1.5kg, 1.85kg Available in Gray and Red, Left and Right zip orientations Specifications Specification Details Model CY0901 RL Outer Shell Waterproof Polyester Terylene Fill Material Four-Holes Cotton Lining Polyester Pongee Length 220 cm Fill Weight Options 0.85kg / 1.15kg / 1.5kg / 1.85kg Shape Mummy Splicing Yes (double-compatible) Zip Orientation Left or Right Available Colors Gray, Red Fill Weight & Temperature Guide Fill Weight For Price 0.85 kg Warm summer nights From $104 1.15 kg Spring / autumn camping From $115 1.50 kg Cool to cold conditions From $128 1.85 kg Cold weather / mild winter From $142 Why Choose This Sleeping Bag?Four-holes cotton fill is a smart choice for campers who experience variable temperatures — it breathes solid synthetic fills, preventing the clammy overheating that ruins sleep on warmer nights, while still providing solid insulation when temperatures drop. The spliceable design and choice of left or right zip make it ly versatile for solo and couple use alike.I For Year-round camping and hiking Backpacking in variable climates Couples camping (splicing feature) Festival and outdoor event camping Emergency preparedness kits In the Box 1 × Jungle King CY0901 Mummy Sleeping Bag Compression storage bag