Coupon 105YEARS applies to select full-price merchandise only. Offer applies to a single eligible item per order. Online only: offer not available in store. Offer available exclusively to Als.com email subscribers – enroll at checkout. Offer valid through 10/4/2026 at 11:59pm MST. Coupon codes are not stackable: one code per order. Offer is limited on on-hand items only. Offer is not transferable and is not redeemable for cash. Not valid on special orders, gift cards, tax, shipping, rentals, previous purchases or bundle discounts. Brand and category exclusions apply. Offer subject to change without notice. See als.com/promotions for details. |
.jpg)
The Sea to Summit Reactor Midweight Liner is an essential companion for hikers and campers braving the cold outdoors. This liner is engineered with Thermolite Pro Technology, using knitted hollow-core fibers and infrared-absorbing ceramic pigments to reflect body heat, enhancing comfort even in colder conditions. Its stretch-knit fabric ensures a snug fit inside any sleeping bag, with a classic mummy design that allows your arms to stretch freely. The liner offers versatile footbox options, from standard mummy to mummy with drawcord, for ventilation and mobility around camp. Made with Thermolite EcoMade fibers, it doesn't compromise on sustainability while delivering on performance. This liner is set to transform your sleep system, adding warmth and comfort for those cool or cold nights.
