Skip to content

You are a pro? Join our Pro Program: Learn more

Technical Features

850+ Loft Ultra-Dry Down

850+ Loft Ultra-Dry Down

The highest-lofting down used in any of Sea to Summit’s sleeping bags. 850+ Fill Power indicates that one ounce (30g) of down will re-expand to over 850 cubic inches after compression. Higher loft means that less down can be used to achieve the same temperature rating – important for performance sleeping bags. The loft and down quality/composition are independently tested by the International Down and Feather Laboratory (IDFL) – a copy of the certification is supplied with every Sea to Summit sleeping bag.

The down is responsibly sourced and RDS certified and treated with the environmentally-friendly Ultra-Dry Down treatment.

All of which means you can rest easy.

Ask us anything

Our customer care team is here for you

Contact Us

Top Picks

€19,95-€26,95
€29,95-€39,95
+1
€16,95-€26,95
+1
€12,95-€36,96
€59,95
€39,95
€39,95-€99,95
+1
€14,95-€34,95
+1
€18,95-€39,95
€34,95-€54,95
€7,95
€69,95-€79,95