Skip to content

Free Delta Cutlery Set with your order of €100+. Learn more

Coming soon: NEW GEAR LAUNCH Explore now

Technical Features

650+ Loft Ultra-Dry Down

650+ Loft Ultra-Dry Down

650 Loft Ultra-Dry Down is used in the Sea to Summit Trek and Journey sleeping bags. 650+ Fill Power indicates that one ounce (30g) of down will re-expand to over 650 cubic inches after compression. This down provides an ideal warmth-to-weight ratio for the traveler, recreational camper, and occasional backpacker. 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 water-repellant 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
€4,95-€6,95
€39,95-€99,95
+1
€14,95-€34,95
+1
€18,95-€39,95
€34,95-€54,95
Camping Utensil & Peg Bag _ replacement _ tent stakes
Utensil & Peg Bag
Get notified
€7,95
€69,95-€79,95