<!--ProdInc[170094597]/Mall:[rei_US]--> RDS-certified, 850-fill-power goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance 10-denier shell with PFC-free durable water repellent (DWR) finish keeps the hood and footbox highly water-resistant Ultralight, breathable 10-denier nylon lining Technical hood, anatomic footbox and an ergonomic mummy shape?ultralight doesn''t have to mean ultratight Hybrid construction has box baffles in the torso and sewn-through in the leg area YKK #5 zipper with zipper plow provides reliable, snag-free operation Sea to Summit Guarantee is offered for the lifetime of this sleeping bagImported. Technical specs <table border=1 cellpadding=5 style=''border-collapse: collapse;''><!--[--><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Best Use</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Backpacking</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Tested Lower Limit</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>30 degrees (F) - ISO</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Tested Comfort</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>39 degrees (F) - ISO</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Temperature Rating (F)</th><td class=''tech-specs__cell'' data-v-fc44804c='' <a href=''https://www.rei.com/product/231220/sea-to-summit-spark-30f-down-sleeping-bag'' target=_blank><img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170094597&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px'' border=0></a>
<!--ProdInc[170094597]/Mall:[rei_US]--> RDS-certified, 850-fill-power goose down with a non-PFC Ultra-Dry Down treatment for maximum thermal performance 10-denier shell with PFC-free durable water repellent (DWR) finish keeps the hood and footbox highly water-resistant Ultralight, breathable 10-denier nylon lining Technical hood, anatomic footbox and an ergonomic mummy shape?ultralight doesn''t have to mean ultratight Hybrid construction has box baffles in the torso and sewn-through in the leg area YKK #5 zipper with zipper plow provides reliable, snag-free operation Sea to Summit Guarantee is offered for the lifetime of this sleeping bagImported. Technical specs <table border=1 cellpadding=5 style=''border-collapse: collapse;''><!--[--><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Best Use</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>Backpacking</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Tested Lower Limit</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>30 degrees (F) - ISO</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Tested Comfort</th><td class=''tech-specs__cell'' data-v-fc44804c=''''><!--[--><p class=''tech-specs__value'' data-v-fc44804c=''''>39 degrees (F) - ISO</p><!--]--></td></tr><tr class=''tech-specs__row'' data-v-fc44804c=''''><th class=''tech-specs__header'' data-v-fc44804c=''''>Temperature Rating (F)</th><td class=''tech-specs__cell'' data-v-fc44804c='' <a href=''https://www.rei.com/product/231220/sea-to-summit-spark-30f-down-sleeping-bag'' target=_blank><img src=''https://www.antpop.co.kr/antMain/AntImgView?CustID=jellymom2&MallKind=US&MallID=rei&ProdInc=170094597&MallIDEncodeYes=0&SiteName=PostSelf'' width=''100px'' height=''20px'' border=0></a>