The Sea To Summit Ascent -9°C Down Long Sleeping Bag is a versatile three-season sleeping bag designed to provide lightweight warmth and adaptability for backpackers, campers and outdoor enthusiasts. Transition smoothly between the seasons with RDS-certified 750+ Ultra-Dry Goose Down, ensuring excellent insulation to keep you toasty warm when the temperature drops, complete with a hydrophobic treatment for quick-drying comfort. A technical, 3-dimensional hood provides additional cold weather coverage, preventing warmth around your head and neck from escaping and avoiding compression of the down. A panelled footbox ensures your extremities stay warm and protected. When the weather heats up, the Free-Flow Zip system allows for multiple ventilation options and the ability to open the bag flat as a quilt, enhancing its adaptability to varying temperatures. You can even fold the top third of the bag down by opening the right side half-zip, offering customisation of coverage and warmth. Its 20D recycled nylon shell features a non-PFAS DWR finish, providing moisture and weather protection in a lightweight package. Featuring a relaxed mummy fit, it offers increased comfort without compromising thermal efficiency. 

Key Features:

• Adaptable Three-Season Sleeping Bag: Suitable for a range of temperatures and conditions, making it ideal for various backcountry adventures
• Long Length: Accommodates users up to 198cm in height - ideal for taller statures or to stretch out naturally
• Lightweight 20D Recycled Nylon Shell: Durable, lightweight and environmentally friendly shell featuring a non-PFAS DWR finish to shield against the elements
• 20D Recycled Nylon Liner: Provides a comfortable, cosy feel while incorporating recycled materials to tread lighter on the environment
• RDS-Certified 750+ Ultra-Dry Goose Down: Responsibly sourced, high-lofting down offers trustworthy insulation and moisture resistance during cold nights, while offering easy packability
• Draft-Tube Protected Zippers: Help create a cosy barrier against the cold - for maximum warmth, shut all zips and pull the cord locks snugly
• Free-Flow Zip System: For customisable temperature regulation to enhance ventilation in warmer seasons, and versatility that allows you to lay the sleeping bag flat to function as a quilt when you prefer not to be fully cocooned 
• Technical Hood: Designed to capture heat around the head and neck, providing critical warmth in colder weather while being spacious enough to accommodate an Aeros Pillow (not included)
• Panelled Footbox: Maintains consistent warmth, right down to your toes 
• Box Baffle Construction: Helps keep the down in place, with the torso featuring vertical baffles, maintaining warmth throughout the sleeping bag  
• Not Just For Sleeping: Can be 'worn' when resting at your campsite by securing the shoulder snaps, opening the zipper at the footbox to keep your feet free and keeping your arms exposed with the half zip on the right side
• Relaxed Mummy Fit: Provides more room to move inside the sleeping bag without sacrificing warmth
• Compatible With Sea To Summit Women’s Bag: Mummy fit allows you to zip it together with a compatible Sea To Summit women’s sleeping bag, for a coupled sleeping configuration 
• Includes: Bluesign approved, 40D recycled nylon compression bag for hassle-free storage and easily portable transport