Ultra-Dry Down™

Ultra-Dry Down™

• Repels moisture
• Retains loft
• Dries faster
• Anti-bacterial and anti-microbial
• Prolongs the life of your sleeping bag

ULTRA-DRY Down™ is a permanent* Nano-level water repellent polymer treatment applied to our high loft, high quality down. The Nano-thin treatment vastly improves our down’s reaction to water without effecting its weight or loft performance. ULTRA-DRY Down™ retains over 60% more loft and absorbs 30% less moisture when compared with untreated down. Sea to Summit sleeping bags dry out 60% faster than bags with untreated down.
The Nano-level treatment also inhibits bacterial and microbial growth, which makes Sea to Summit sleeping bags more hygienic and improves their lifespan.
*No loss of treatment effect has been seen in over 14 wash cycles.