{"title":"Quilt \u0026 Sleeping Bag Liners","description":"\u003cp\u003eThe right liner changes everything about your sleep system. Layer one inside your JRB quilt or any sleeping bag to push the temperature rating lower, or shake it out on its own when the night doesn't call for much more. JRB liners are built for backpacking trips and shoulder-season pushes, but soft and packable enough for the couch, the guest room, and everywhere in between. Whether you want Polartec Alpha Direct's active temperature regulation, the everyday warmth of Micro-Grid Fleece, or wind and moisture protection from the Windproof Liner — there's a right liner for every condition. All sewn in Pennsylvania.\u003c\/p\u003e","products":[{"product_id":"micro-grid-fleece-sleeping-bag-quilt-liner","title":"Micro-Grid Fleece Sleeping Bag \u0026 Quilt Liner","description":"\u003c!-- ============================================================\nSHOPIFY SEO FIELDS (paste these under \"Edit website SEO\")\n\nPRODUCT TITLE (on-page):\nMicro-Grid Fleece Sleeping Bag \u0026 Quilt Liner\n\nSEO TITLE (meta, under 60 chars):\nMicro-Grid Fleece Sleeping Bag \u0026 Quilt Liner | Made in USA | Jack's R Better\n\nMETA DESCRIPTION (150–160 chars):\nAdd 10–15°F of warmth to any sleeping bag or quilt with JRB's Micro-Grid Fleece Liner. Soft, packable, and machine washable. Made in Pennsylvania, USA. 5 colors.\n============================================================ --\u003e\n\n\u003cp\u003eNot every night calls for a technical sleep system. The Micro-Grid Fleece Liner is JRB's everyday option — soft, warm, and simple. Layer it inside any JRB quilt or sleeping bag to add 10–15°F of warmth, or shake it out on its own as a fleece camping blanket when the full setup is more than you need. No backpacking price tag. No moisture-wicking claims. Just fleece that feels good and holds heat.\u003c\/p\u003e\n\n\u003ch2\u003eWhat makes it different\u003c\/h2\u003e\n\n\u003cp\u003eMost fleece liners are an afterthought — mass-produced overseas and sized for generic sleeping bags. The Micro-Grid is cut to fit JRB quilts specifically, so it layers cleanly without bunching or shifting. The micro-grid pattern adds loft and softness without the bulk of heavier polar fleece, and at 17 oz it packs down small enough to toss in a day bag without a second thought. Five colors, all sewn in Pennsylvania.\u003c\/p\u003e\n\n\u003ch2\u003eHow to use it\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAs a quilt liner:\u003c\/strong\u003e Layers inside any JRB quilt to drop the temperature rating 10–15°F — great for pushing a 3-season quilt into shoulder-season territory\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAs a sleeping bag liner:\u003c\/strong\u003e Adds 10–15°F to any sleeping bag, extending your system into colder nights without buying a new bag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAs a standalone camping blanket:\u003c\/strong\u003e Warm enough on its own for mild nights at the campsite or around the fire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAt home:\u003c\/strong\u003e Soft enough for the couch. Washable enough to actually use it there. Trail Tested. Couch Approved.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow it compares\u003c\/h2\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003e\u003c\/th\u003e\n      \u003cth\u003eMicro-Grid Fleece Liner\u003c\/th\u003e\n      \u003cth\u003e\u003ca href=\"\/products\/polartec-alpha-direct-quilt-liner\"\u003eAlpha Direct Liner\u003c\/a\u003e\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBest for\u003c\/td\u003e\n      \u003ctd\u003eCar camping, home use\u003c\/td\u003e\n      \u003ctd\u003eBackpacking, thru-hiking\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003e17 oz\u003c\/td\u003e\n      \u003ctd\u003e8–12 oz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWarmth added\u003c\/td\u003e\n      \u003ctd\u003e10–15°F\u003c\/td\u003e\n      \u003ctd\u003e5–15°F\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMoisture wicking\u003c\/td\u003e\n      \u003ctd\u003eNo\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePrice\u003c\/td\u003e\n      \u003ctd\u003eLower\u003c\/td\u003e\n      \u003ctd\u003eHigher\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMaterial: Micro-Grid Fleece, 100% Polyester\u003c\/li\u003e\n  \u003cli\u003eWeight: 17 oz\u003c\/li\u003e\n  \u003cli\u003eSizing: Sized to match your JRB quilt\u003c\/li\u003e\n  \u003cli\u003eMachine washable\u003c\/li\u003e\n  \u003cli\u003eAvailable in 5 colors\u003c\/li\u003e\n  \u003cli\u003eMade in Pennsylvania, USA\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Jacks R Better","offers":[{"title":"Moroccan Blue Micro Grid Fleece","offer_id":45384526135343,"sku":"FBMGMB","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Gray Micro Grid Fleece","offer_id":45384526069807,"sku":"FBMGG","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Green Micro Grid Fleece","offer_id":45384526168111,"sku":"FBMGGR","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Terracotta Orange Micro Grid Fleece","offer_id":45384526102575,"sku":"FBMGBO","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Purple Micro Grid Fleece","offer_id":45384526200879,"sku":"FBMGPR","price":49.95,"currency_code":"USD","in_stock":true},{"title":"Blue Micro Grid Fleece","offer_id":45572842881071,"sku":"FBMGB","price":49.95,"currency_code":"USD","in_stock":false},{"title":"Plum Micro Grid Fleece","offer_id":45572842913839,"sku":"FBMG","price":49.95,"currency_code":"USD","in_stock":false},{"title":"Red Micro Grid Fleece","offer_id":45572842946607,"sku":"FBMGRE","price":49.95,"currency_code":"USD","in_stock":false},{"title":"Sky Blue Micro Grid Fleece","offer_id":45572842979375,"sku":"FBMGSB","price":49.95,"currency_code":"USD","in_stock":false},{"title":"Yellow Micro Grid Fleece","offer_id":45572843012143,"sku":"FBMGYE","price":49.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/6567\/2239\/files\/JRB_Micro-Grid_Fleece_Sleeping_Bag_Quilt_Liner_in_Moroccan_Blue_made_in_Pennsylvania.jpg?v=1779915854"},{"product_id":"polartec-alpha-direct-quilt-liner","title":"Polartec Alpha Direct Quilt Liner","description":"\u003c!-- ============================================================\nSHOPIFY SEO FIELDS (paste these under \"Edit website SEO\")\n\nPRODUCT TITLE (on-page):\nPolartec Alpha Direct Quilt Liner – Ultralight Sleeping Bag Liner \u0026 Summer Quilt\n\nSEO TITLE (meta, under 60 chars):\nPolartec Alpha Direct Quilt Liner – Ultralight Sleeping Bag Liner\n\nMETA DESCRIPTION (150–160 chars):\nPolartec Alpha Direct quilt liner — adds 5–15°F to any sleep system. Ultralight, breathable, never clammy. Built for backpacking. Made in Pennsylvania.\n============================================================ --\u003e\n\u003cp\u003ePolartec Alpha Direct does something most insulation can't — it actively regulates temperature instead of just trapping heat. Built with the same technology trusted by mountain guides and ultralight thru-hikers, it breathes when you run warm and insulates when you don't — so you stop waking up sweaty at 2 am. Whether you're pushing your sleeping bag into shoulder-season territory or heading out on a warm-weather overnight with nothing but this, it's the layer that earns its weight.\u003c\/p\u003e\n\u003ch2\u003eWhat makes it different\u003c\/h2\u003e\n\u003cp\u003ePolartec Alpha Direct skips the shell fabric entirely — the insulation is the surface, designed to sit directly against your skin. That means less bulk, faster drying, and a next-to-skin softness you won't find in a standard sleeping bag liner. Unlike other fabrics that go clammy when temperatures and humidity climb, Alpha Direct stays soft and dry against your skin — no sticking, no cling, no matter how muggy it gets. Use it as a standalone summer quilt on warm nights, a versatile camping liner for any sleep system, or a packable backpacking liner that pulls its weight on thru-hikes, weekend trips, and nights at home alike. \u003cem\u003eTrail Tested. Couch Approved.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eHow to use it\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs a sleeping bag liner:\u003c\/strong\u003e Adds 5–15°F to any 3-season bag, extending your system deep into shoulder season\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs a quilt liner:\u003c\/strong\u003e Pairs with any backpacking quilt to extend its warmth range without the bulk of a heavier bag\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs a summer quilt:\u003c\/strong\u003e Standalone warmth rated to 50–60°F — ultralight, packable, ready for warm-weather camping\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor backpacking and thru-hiking:\u003c\/strong\u003e At 8–12 oz, it earns every gram without adding bulk to your kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eChoose your weight\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eStandalone Comfort\u003c\/th\u003e\n\u003cth\u003eAs a Liner Adds\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cmeta charset=\"utf-8\"\u003eAlpha Direct 90\u003c\/td\u003e\n\u003ctd\u003e8 oz\u003c\/td\u003e\n\u003ctd\u003e~60°F\u003c\/td\u003e\n\u003ctd\u003e5–10°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlpha Trail 90*\u003c\/td\u003e\n\u003ctd\u003e8 oz\u003c\/td\u003e\n\u003ctd\u003e~60°F\u003c\/td\u003e\n\u003ctd\u003e5–10°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlpha Direct 120\u003c\/td\u003e\n\u003ctd\u003e12 oz\u003c\/td\u003e\n\u003ctd\u003e~50°F\u003c\/td\u003e\n\u003ctd\u003e10–15°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003e*Alpha Trail 90 features two-way stretch and packs even smaller than the Alpha Direct 90.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Polartec Alpha Direct Fleece\u003c\/li\u003e\n\u003cli\u003eDimensions: 72\" long × 55\" wide\u003c\/li\u003e\n\u003cli\u003eFoot box: 15\" circular, sewn-in\u003c\/li\u003e\n\u003cli\u003ePacked size: 10\" long × 4\" diameter cylinder\u003c\/li\u003e\n\u003cli\u003eMade in Pennsylvania 🇺🇸\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWant to push your liner into shoulder-season territory? Add the \u003ca href=\"\/products\/windproof-shell-for-alpha-direct-quilt-liner\"\u003e\u003cstrong\u003eWindproof Shell\u003c\/strong\u003e\u003c\/a\u003e — 2.9 oz of Argon 67 that blocks wind and light moisture, extends your effective warmth range by several degrees, and packs down to nothing.\u003c\/p\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eThese sell out as fast as we make them.\u003c\/strong\u003e Place a backorder now to reserve yours from the next production run — we'll ship it the moment it's ready.\u003c\/p\u003e","brand":"Jacks R Better","offers":[{"title":"Black Alpha 90","offer_id":45384912797743,"sku":"AD90LBLK","price":114.95,"currency_code":"USD","in_stock":true},{"title":"Black Alpha Trail 90","offer_id":45384912764975,"sku":"TD90BLK","price":99.95,"currency_code":"USD","in_stock":true},{"title":"Purple Grape Alpha 90","offer_id":45384912830511,"sku":"AD90LPG","price":114.95,"currency_code":"USD","in_stock":true},{"title":"Fern Green Alpha 90","offer_id":45384912863279,"sku":"AD90LFRN","price":114.95,"currency_code":"USD","in_stock":true},{"title":"Yellow Alpha 120","offer_id":45384912896047,"sku":"AD120LY","price":119.95,"currency_code":"USD","in_stock":true},{"title":"Rustic Red Alpha 90","offer_id":45572843274287,"sku":"AD90LRR","price":114.95,"currency_code":"USD","in_stock":false},{"title":"Blue Alpha 90","offer_id":45572843307055,"sku":"AD","price":114.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/6567\/2239\/files\/polartec-alpha-direct-quilt-liner-packed-size-backpacking.jpg?v=1779915456"},{"product_id":"windproof-shell-for-alpha-direct-quilt-liner","title":"Windproof Shell for Alpha Direct Quilt Liner","description":"\u003c!-- ============================================================\nSHOPIFY SEO FIELDS (paste these under \"Edit website SEO\")\n\nPRODUCT TITLE (on-page):\nWindproof Shell for Alpha Direct Quilt Liner – Ultralight Wind Protection\n\nSEO TITLE (meta, under 60 chars):\nWindproof Shell for Alpha Direct Liner | Jacks R Better\n\nMETA DESCRIPTION (150–160 chars):\n2.9 oz windproof shell that locks in the microclimate your Alpha Direct liner creates. Blocks wind and light moisture. Extends your warmth range into shoulder season. Made in Pennsylvania.\n============================================================ --\u003e\n\n\u003cp\u003eAlpha Direct insulation works by trapping a layer of warm air close to your body. Wind destroys that layer in seconds. This 2.9 oz shell stops that from happening — and at that weight, there's no reason to leave home without it.\u003c\/p\u003e\n\n\u003ch2\u003eWhat it does\u003c\/h2\u003e\n\n\u003cp\u003eThe Windproof Shell wraps your Alpha Direct Quilt Liner in a breathable Argon 67 shell that blocks wind and sheds light moisture without trapping heat. The result: the shell locks in the microclimate your Alpha Direct liner creates, and you sleep warmer than the temperature rating would suggest. It's also a capable standalone layer on mild nights when you want weather protection without full insulation.\u003c\/p\u003e\n\n\u003cp\u003eThe sewn-in circular foot box — same 15\" diameter as your liner — keeps everything aligned and gives you easy access for ventilation without letting cold air creep in from the bottom.\u003c\/p\u003e\n\n\u003ch2\u003eHow to use it\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOver your Alpha Direct liner:\u003c\/strong\u003e Extends effective warmth by several degrees — turns your summer quilt into a legitimate shoulder-season system\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAs a standalone shell:\u003c\/strong\u003e Use it on warm nights when you want wind protection without the weight of a full insulated layer\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFor mixed-forecast trips:\u003c\/strong\u003e One shell, packed in seconds, changes what your sleep system can handle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhich liner should I pair this with?\u003c\/h2\u003e\n\n\u003cp\u003eThe Windproof Shell fits all three Jacks R Better Alpha Direct liners — same 72\" × 55\" dimensions, same 15\" foot box. The right pairing depends on your conditions:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrail 90 or Alpha Direct 90 + Shell:\u003c\/strong\u003e Your go-to warm-weather setup. The liner handles nights down to ~60°F on its own — add the shell when wind or light rain is in the forecast and you'll stay comfortable well below that without carrying a heavier bag\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAlpha Direct 120 + Shell:\u003c\/strong\u003e A capable shoulder-season system. The 120 already pushes standalone comfort to ~50°F — wrap it in the shell and you've got a legitimate 3-season setup at a fraction of the weight of a traditional sleeping bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNot sure which liner to start with? The \u003ca href=\"\/products\/polartec-alpha-direct-quilt-liner-summer-blanket\"\u003eAlpha Direct Quilt Liner\u003c\/a\u003e page breaks down all three options side by side.\u003c\/p\u003e\n\n\u003ch2\u003eSpecs\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMaterial: Argon 67 (windproof, breathable, water-resistant)\u003c\/li\u003e\n  \u003cli\u003eDimensions: 72\" long × 55\" wide\u003c\/li\u003e\n  \u003cli\u003eFoot box: 15\" circular, sewn-in\u003c\/li\u003e\n  \u003cli\u003eWeight: 2.9 oz\u003c\/li\u003e\n  \u003cli\u003eAvailable in: Black, Dark Olive, Moroccan Blue\u003c\/li\u003e\n  \u003cli\u003eMade in Pennsylvania 🇺🇸\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eDesigned specifically for the Jacks R Better Alpha Direct Quilt Liner\/Summer Blanket. Dimensions match — it fits the way it should.\u003c\/p\u003e","brand":"Jacks R Better","offers":[{"title":"Black","offer_id":45387108122671,"sku":"WSBLK","price":64.95,"currency_code":"USD","in_stock":true},{"title":"Dark Olive","offer_id":45387108155439,"sku":"WSDO","price":64.95,"currency_code":"USD","in_stock":true},{"title":"Moroccan Blue","offer_id":45387108188207,"sku":"WSMB","price":64.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/6567\/2239\/files\/jrb-windproof-shell-alpha-direct-liner-sleep-system.jpg?v=1779914016"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0748\/6567\/2239\/collections\/jrb-windproof-shell-alpha-direct-liner-sleep-system.jpg?v=1782251617","url":"https:\/\/jacksrbetter.com\/collections\/quilt-liners-and-summer-blankets.oembed","provider":"Jacks R Better","version":"1.0","type":"link"}