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Sea to Summit Sleeping Systems

Ultralight, compact and versatile, Sea to Summit's latest range of sleeping bags and liners are built for all seasons, terrains and adventures. From ultralight hiking to car-camping comfort, find the sleeping bag that really fits you–and your adventure.

The 2024 technical liners with a Mummy shape now feature shoulder openings and a drawcord in the foot section, which complement the innovative Free-Flow zippers found on their mummy sleeping bags. You can easily reach your arms through the openings or sleeping bag zippers to enjoy a cup of coffee in your tent. Additionally, you can utilise the shoulder openings for extra ventilation to adjust your temperature. The liner also has a base drawcord that can be opened, allowing for simpler middle-of-the-night bathroom breaks.