Sea to Summit Reactor Fleeceweight Sleeping Bag Liner
Thermal sleeping bag liner for cold-weather backpacking, ski touring, and warm-weather overnight use on its own.
Reactor Fleeceweight Sleeping Bag LinerRegular
Sale price$134.95 CAD
Product Details
Style #: 56901
We offer free standard shipping within Canada on orders over $99. Orders ship from our store in Banff, Monday through Friday. Most orders are processed within two business days, with orders placed after 12 p.m. MST requiring an additional business day. Once your order ships, you’ll receive tracking right away. We currently only ship to Canadian addresses - Learn more.
If something isn’t quite right, most online orders can be returned within 14 days as long as items are unused and in original condition. Refunds are issued to the original payment method once items are received back in-store, with in-store returns always free and a small return shipping fee applying to mailed returns - Learn more.
All items are available for in-store pickup at our Banff location. Orders are typically ready within an hour during business hours, and always within 24 hours. Simply select in-store pickup at checkout and we’ll have it waiting for you at 129 Banff Avenue.
If you find the same product for less at a Canadian retailer, we’ll match it — or beat it. The item must be identical, in stock, and sold in Canada at a publicly advertised price. If you’ve already purchased, we’ll refund the difference on eligible orders within 15 days - Learn more
Why you'll love it
ADDS WARMTH
Thermolite® hollow-core fibers and grid fleece trap and reflect body heat to boost your sleep system by up to 8°C|14°F with minimal added weight.
MOVES NATURALLY
The stretch fleece, shaped arm openings, and fitted hood give this liner a less restrictive feel, so it stays comfortable when you shift around at night.
EASY TO LIVE WITH
HeiQ Fresh odor control helps it stay fresher on longer trips, and the machine-washable build reduces the need to wash your sleeping bag as often. Shoulder snap connectors also pair easily with Sea to Summit sleeping bags.
Frequently asked questions
We’re here to help with the details, before and after you order.
Most orders leave our shop within 1–2 business days. Once your order is packed and scanned by the carrier, you’ll receive tracking right away.
No stress, it happens. If something doesn’t fit the way you expected, most items can be returned within 14 days as long as they’re unworn and in original condition. In-store returns are free, and mailed returns include a small return shipping fee. Some conditions do apply. Return Policy.
Most of our products are backed by the manufacturer’s warranty. If something goes wrong, we’ll help guide you through the process and advocate on your behalf.
Yes. With our Best Price Guarantee, if you find the same product for less at a Canadian retailer, we’ll match it — or beat it. No hoops, no hard feelings, just fair pricing. Learn more.
Monod Sports is a family-owned specialty shop rooted in Banff, since 1949. Our team lives and works in the mountains, and we’re selective about what we carry — choosing quality gear we trust ourselves, stand behind fully, and feel confident recommending to anyone who walks through our doors.