• Mommy-style sleeping bag, representative of professional sleeping bag, can greatly improve, keep warm.
• Thickened windshield, special zippered windshield design for professional sleeping bag, wind from entering from the gap of zipper, affecting the insulation effect of sleeping bag.
• protection pad, professional sleeping bag two-way zipper protection stickers designed to prevent the zipper from loosening, causing air leakage to affect the sleeping bag temperature.
• Windproof cap adjustment system, ergonomically designed windproof cap, fits well with the human head, and has its own adjustment for size.