{"product_id":"reactor-fleece-sleeping-bag-liner-mummy-w-drawcord-standard-picante-red","title":"Sea to Summit Reactor Fleece Sleeping Bag Liner – Thermolite Pro Grid Fleece with Drawcord Footbox and Shoulder Zips for Maximum Warmth, Versatile Use, and Cold-Weather Performance","description":"\u003cp data-start=\"460\" data-end=\"840\"\u003eBuilt for serious cold-weather performance, the Sea to Summit Reactor Fleece Sleeping Bag Liner is the warmest liner in the Reactor series. Constructed with grid-patterned hollow-core Thermolite Pro fibers, this fleece liner adds substantial insulation to your sleep system—ideal as a core component for extreme conditions or as a lightweight standalone bag in warm climates.\u003c\/p\u003e\n\u003cp data-start=\"842\" data-end=\"1234\"\u003eThe mummy-shaped design maximizes heat retention, while shoulder zippers and a drawcord footbox give you versatile temperature regulation. Whether you're layering up for alpine expeditions or sleeping under the stars during milder nights, this liner keeps you comfortable and adaptable. Plus, it's treated with HeiQ Fresh odor control technology to stay fresh even after extended use.\u003c\/p\u003e\n\u003cp data-start=\"1236\" data-end=\"1476\"\u003eAligns perfectly with Sea to Summit's Free Flow Zip system, so you can enjoy seamless integration when used inside compatible sleeping bags. It’s the go-to option for adventurers who demand both warmth and flexibility from their sleep gear.\u003c\/p\u003e\n\u003cp data-start=\"1236\" data-end=\"1476\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1516\" data-end=\"2747\"\u003e\n\u003cli data-start=\"1516\" data-end=\"1680\"\u003e\n\u003cp data-start=\"1518\" data-end=\"1680\"\u003e\u003cstrong data-start=\"1518\" data-end=\"1551\"\u003eMaximum Warmth and Insulation\u003c\/strong\u003e\u003cbr data-start=\"1551\" data-end=\"1554\"\u003eMade with hollow-core Thermolite Pro fleece arranged in a heat-retentive grid pattern for ultimate cold-weather protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1682\" data-end=\"1838\"\u003e\n\u003cp data-start=\"1684\" data-end=\"1838\"\u003e\u003cstrong data-start=\"1684\" data-end=\"1719\"\u003eVersatile Design for Any Season\u003c\/strong\u003e\u003cbr data-start=\"1719\" data-end=\"1722\"\u003eFunctions as a thermal liner in cold environments or a lightweight standalone sleeping bag in warmer temperatures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1840\" data-end=\"1979\"\u003e\n\u003cp data-start=\"1842\" data-end=\"1979\"\u003e\u003cstrong data-start=\"1842\" data-end=\"1862\"\u003eDrawcord Footbox\u003c\/strong\u003e\u003cbr data-start=\"1862\" data-end=\"1865\"\u003eAdjusts for ventilation or mobility—tighten for warmth or loosen to walk around camp without removing the liner.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1981\" data-end=\"2099\"\u003e\n\u003cp data-start=\"1983\" data-end=\"2099\"\u003e\u003cstrong data-start=\"1983\" data-end=\"2008\"\u003eDual Shoulder Zippers\u003c\/strong\u003e\u003cbr data-start=\"2008\" data-end=\"2011\"\u003eAllow for convenient arm access and customizable airflow while keeping your core warm.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2101\" data-end=\"2239\"\u003e\n\u003cp data-start=\"2103\" data-end=\"2239\"\u003e\u003cstrong data-start=\"2103\" data-end=\"2130\"\u003eHeiQ Fresh Odor Control\u003c\/strong\u003e\u003cbr data-start=\"2130\" data-end=\"2133\"\u003eBio-based odor technology helps the liner stay fresher for longer during multi-day or backcountry trips.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2241\" data-end=\"2390\"\u003e\n\u003cp data-start=\"2243\" data-end=\"2390\"\u003e\u003cstrong data-start=\"2243\" data-end=\"2283\"\u003eCompatible with Free Flow Zip System\u003c\/strong\u003e\u003cbr data-start=\"2283\" data-end=\"2286\"\u003eDesigned to align with Sea to Summit’s sleeping bags for optimized integration and thermal efficiency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2392\" data-end=\"2513\"\u003e\n\u003cp data-start=\"2394\" data-end=\"2513\"\u003e\u003cstrong data-start=\"2394\" data-end=\"2419\"\u003eEfficient Mummy Shape\u003c\/strong\u003e\u003cbr data-start=\"2419\" data-end=\"2422\"\u003eContoured to reduce dead air space and maximize body heat retention during frigid nights.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2515\" data-end=\"2642\"\u003e\n\u003cp data-start=\"2517\" data-end=\"2642\"\u003e\u003cstrong data-start=\"2517\" data-end=\"2544\"\u003eCompact and Lightweight\u003c\/strong\u003e\u003cbr data-start=\"2544\" data-end=\"2547\"\u003ePacks down small into the included storage case for easy transport in any backpack or duffel.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2644\" data-end=\"2747\"\u003e\n\u003cp data-start=\"2646\" data-end=\"2747\"\u003e\u003cstrong data-start=\"2646\" data-end=\"2668\"\u003eLifetime Guarantee\u003c\/strong\u003e\u003cbr data-start=\"2668\" data-end=\"2671\"\u003eBacked by Sea to Summit's commitment to long-term quality and performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sea to Summit","offers":[{"title":"PICANTE RED","offer_id":46553564971146,"sku":"S2S-REACTOR-FLECE-SBLINER-MUMMY-STRD-PICANTERED","price":94.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0580\/1295\/8858\/files\/SeatoSummitReactorFleeceSleepingBagLiner.webp?v=1758306480","url":"https:\/\/ridgeandriver.com\/products\/reactor-fleece-sleeping-bag-liner-mummy-w-drawcord-standard-picante-red","provider":"Ridge \u0026 River","version":"1.0","type":"link"}