Ultralight Sleeping Bag Naturehike CW400 20D Ripstop Nylon 650FP Duck Down M Grey

Ultralight Sleeping Bag Naturehike CW400 is a high-performance hybrid insulation system designed for 3-season camping and technical backpacking. Weighing only 760g, this outdoor equipment features a 20D 400T ripstop nylon shell that provides windproof protection and long-lasting durability for rugged environments. The 85% white duck down filling offers a comfort rating between 0C and 5C, making it an essential piece of waterproof gear for spring and autumn conditions. The 650 Fill Power duck down technology works by trapping vast amounts of air within the down clusters to create an efficient thermal barrier between the user and the external environment. This high-loft insulation maximizes heat retention while allowing the bag to compress into a compact packing size, significantly reducing pack volume for long-distance hiking footwear and gear setups.

Features

• Ultralight 760g construction: Optimized for fast-and-light travel, this bag offers professional insulation without adding significant weight to a trekking setup.
• Hybrid Semi-Rectangular Shape: Combines a mummy-style upper body for head warmth with a rectangular lower section for increased leg mobility.
• Premium 650FP Insulation: Filled with 85% high-quality white duck down to ensure a superior warmth-to-weight ratio during chilly nights.
• Weather-Resistant Shell: Crafted from 20D 400T ripstop nylon material that offers effective moisture management and breathable performance.
• YKK Hardware: Equipped with industry-standard YKK zippers for smooth, snag-free operation and reliable closure in the field.
• Compact Portability: Engineered for space-efficient travel, compressing down into a manageable size for streamlined backpack organization.
• Splicing Capability: Features a versatile splicing design that allows single sleeping bags to be connected together for individual or couple use.

A trek through the high-altitude trails of the Julian Alps in Slovenia requires equipment that can handle rapid cooling as night falls over the limestone peaks. The Ultralight Sleeping Bag Naturehike CW400 provides the necessary 0C to 5C comfort range when camping near the Triglav Lakes Valley. Its 760g weight allows for easier management during steep ascents on technical mountain paths. The windproof 20D nylon shell acts as a critical barrier against the sharp drafts common in the alpine ridges of the Gorenjska region.

Technical Specifications

Materials and Design

• Down Sleeping Bag: A specialized hybrid bag with 650FP duck down for maximum thermal efficiency and comfort.
• Compression Sack: Included for reducing the bag to its minimum travel volume within a backpack.
• Mesh Storage Bag: A dedicated large bag for long-term storage to prevent down compression and maintain loft.
• Ripstop Fabric: 20D Nylon construction designed to prevent tears from spreading in demanding outdoor conditions.

About Naturehike

Naturehike is a globally recognized manufacturer specializing in technical outdoor gear and ultralight camping equipment. The brand is distinguished by its commitment to rigorous quality control standards and the use of high-performance materials like ripstop nylon and premium down. Naturehike has established a reputation for producing durable, expedition-ready products that balance advanced engineering with practical utility for hikers worldwide.