Sea to Summit Basecamp Sleeping Bags

Our most versatile and spacious sleeping bag, the Basecamp™ provides unrestricted movement and integration with your mat so you can enjoy a little more stretch out comfort while escaping outdoors.Three two-way zips provide ultimate ventilation and temperature control and allow the top and bottom layers to be separated, with the top becoming a standalone quilt for warmer conditions.Our unique WaveLoft™ construction uses thick layers of THERMOLITE® insulation looped together to gain extra loft and trap pockets of warm air, providing increased warmth in colder conditions. The baffle construction also eliminates the frustration of getting tangled in loose lining as all lining fabrics are attached to the shell fabric.Perfect for sleepers who like to stretch out full length or curl up into a ball, the Basecamp™ provides versatile comfort for gear drops, car camping and day trips from base camp.


  • Spacious contoured rectangular shape
  • Three two-way zips for ventilation and climate control
  • Multi zip configuration provides versatility
  • THERMOLITE® insulation using WaveLoft™ construction for extra warmth and loft
  • Lining fabrics attached to shell prevents tangles
  • Elastic loops connect sleeping bag to mat
  • Proprietary blend of THERMOLITE® insulation using soft microfibres and fine denier hollow-core fibres for lightweight warmth and softness, with high loft and superior compressibility
  • Oversized anti-snag zip draft tubes and neck draft tube
  • 30D DWR Nylon shell and 20D Nylon lining are lightweight and very compressible fabrics
  • Includes strong 70D compression sack
EN13537 Temp Rating Comfort -1°C | 31°F
EN13537 Temp Rating Lower Limit -7°C | 20°F
EN13537 Temp Rating Extreme -24°C | -11°F
Compression Sack Size Medium (14L to 4.5L)
Dimensions (CM) Double 215 x 167 Long230 x 104 Regular215 x 97
Internal Chest Circumference Double 194cm Long 208cm Regular 194cm
Internal Foot Circumference Double 142cm Long 172cm Regular 142cm
Internal Hip Circumference Double 190cm Long 204cm Regular 190cm
Recommended User Height Double up to 183cm, Long up to 193cm, Regular up to 183cm
Weight Double 2300g Long1600g Regular1340g

Collections: Sea to Summit, Sleeping, Sleeping Bags

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