The Naturehike Waterproof Camping Envelope Sleeping Bag is the spring and autumn companion that prioritizes comfort without sacrificing practicality. Filled with soft silk and wrapped in a waterproof terylene shell, it delivers a ly luxurious sleep experience in temperatures from 5°C to 15°C — the sweet spot for three-season camping. At 190 × 75 cm with a lengthened design that fits adults from 1.8 m to 2 m tall, this bag gives taller campers the room they need. The splicing double zipper lets you connect a left-zip and right-zip bag for a spacious double sleeping bag when camping with a partner. Specifications Specification Detail Brand / Model Naturehike NH22MSD05 Style Envelope Filling Silk Shell Fabric Terylene (Waterproof) Temperature Rating 5°C to 15°C Season 3-Season (Spring, Autumn) Unfolded Size 190 × 75 cm Suitable Height 1.8 m – 2.0 m (Lengthened) Splicing Yes – pair L + R zipper for double bag Applicable Users Adults Available Colors Green, Navy Blue, Grey Why Choose This Naturehike Envelope Bag? Silk Fill for Superior Comfort: Silk is naturally temperature-regulating, breathable, and exceptionally soft — a step above synthetic fills for three-season use. Waterproof Terylene Shell: Protects the silk fill from moisture and ground damp, maintaining insulation performance across wet conditions. Lengthened Fit for Tall Adults: Designed for adults 1.8–2.0 m tall — no more cramped footboxes for taller campers. Splicing Double Design: Pair a left-zip and right-zip bag for a spacious double sleeping bag — i for couples camping together. Naturehike Quality: Backed by a globally recognized outdoor brand with a reputation for reliable, well-engineered gear. I For Spring and autumn camping trips Campers who prioritize comfort and sleep quality Tall adults (1.8–2.0 m) needing a lengthened fit Couples camping (pairing L + R zipper bags) Three-season backpacking in mild conditions In the Box 1 × Naturehike Waterproof Camping Envelope Sleeping Bag 1 × Carry/storage bag