{"product_id":"ultralight-pack-liners-backpack-liner","title":"Ultralight Pack Liners (Backpack Liner)","description":"\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/fq3c64S34zA?si=i_TAuPTmQy4exW0x\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eThe waterproof upgrade your expensive sleeping bag\/quilt deserves\u003c\/h2\u003e\n\u003cp\u003eMost backpackers use a trash compactor bag or nylofume bags to keep their gear dry. It works… until it doesn't. Trash bags or other thin plastic bags rip and tear over time, leak after a few weeks, fall apart in your pack, and turn into trash you have to pack out.\u003c\/p\u003e\n\u003cp\u003eOur Ultralight Pack Liner solves that, for the same trip count you'd cycle through 10+ trash bags, you get one liner that keeps going for years.\u003c\/p\u003e\n\u003ch2\u003eMade in our shop in Waynesburg, PA from Challenge D50T fabric.\u003c\/h2\u003e\n\u003cp\u003ethe same waterproof material we use for our food bags and dry bags. Hand-built, taped seams, built to outlast your backpack.\u003c\/p\u003e\n\u003ch2\u003eTrash bag vs. Hilltop Pack Liner\u003c\/h2\u003e\n\u003ctable style=\"width: 100.036%;\" width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003e\u003cstrong\u003eTrash compactor bag\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003e \u003cstrong\u003eHilltop Pack Liner\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003eCost\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003e$1 per trip\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003elasts for years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003e2.5–3 oz\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003e2.8–3.85 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003eWeatherproofness\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eDecent, until torn\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eFully taped seams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003eDurability\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eRips after a few uses\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003e1,000+ miles tested\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003eOuter abrasion layer\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003eSustainability\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eThrowaway plastic\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eOne liner, years of use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 32.3625%;\"\u003ePacks out cleanly\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eLeaves micro-plastic\u003c\/td\u003e\n\u003ctd style=\"width: 33.4412%;\"\u003eReusable, no waste\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy ultralight hikers upgrade\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eWaterproof Challenge D50T fabric with fully taped seams, no leaks, no patching with duct tape on trail\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOuter abrasion layer, protects against tent poles, stakes, and rough gear rubbing through\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLighter than a Dyneema 2.92 oz liner, at a fraction of the cost\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTrusted by thru-hikers, on the AT, PCT, CDT, and beyond\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBacked by our 5-year warranty, if it fails on trail, we fix it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePick the right size for your pack\u003c\/h2\u003e\n\u003cp\u003eLay your backpack flat. Measure the width. You want your liner just slightly wider than your pack. Don't worry about height, your tent and other non-critical items live below the liner anyway.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSmall -\u003c\/strong\u003e 16.25\" × 31.5\" flat · 2.8 oz · For 20–33 L packs\u003cbr\u003e\u003cstrong\u003eMedium\u003c\/strong\u003e - 18.25\" × 33.25\" flat · 3.25 oz · For 35–50 L packs\u003cbr\u003e\u003cstrong\u003eLarge\u003c\/strong\u003e - 21\" × 35.25\" flat · 3.85 oz · For 50–70 L packs\u003c\/p\u003e\n\u003cp\u003eNot sure which size? Contact us, we'll figure it out together.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDo I really need a pack liner if my pack is \"waterproof\"?\u003c\/strong\u003e\u003cbr\u003eMost backpacks are water-resistant, not waterproof. Sustained rain, river crossings, and condensation will soak through eventually. A pack liner is the difference between dry sleep and a miserable night.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrash compactor bag vs Pack liner - what's the real difference?\u003c\/strong\u003e\u003cbr\u003eTrash bags work in a pinch. They rip on rough gear, leak after a few weeks, and you'll cycle through them constantly. A Hilltop Pack Liner pays for itself within a season of regular backpacking - and lasts years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWill this fit inside my backpack?\u003c\/strong\u003e\u003cbr\u003eUse the volume guide above. The liner is meant to be slightly larger than your pack interior so you can roll the top closed. If you're between sizes, go larger.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow do I close it?\u003c\/strong\u003e\u003cbr\u003eRoll the top 3–5 times and clip or just tuck. The taped seams keep water out from the bottom and sides; rolling the top creates a waterproof seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat if it fails?\u003c\/strong\u003e\u003cbr\u003e5-year warranty. If a seam fails or fabric tears under normal use, we fix it free.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\n\u003cstrong\u003eWhere is it made?\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIn our shop in Waynesburg, Pennsylvania. Every liner is hand-built by our team - same crew that makes our backpacks and food bags.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWant to learn more?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRead about \u003ca href=\"https:\/\/hilltoppacks.com\/pages\/d50t-vs-dtrs75-vs-dyneema\"\u003eChallenge D50T fabric vs Dyneema vs DTRS75\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eOr see our full guide: \u003ca href=\"https:\/\/hilltoppacks.com\/blogs\/news\/pack-liner-vs-pack-cover-which-one-actually-keeps-your-gear-dry\"\u003ePack Liner vs Pack Cover - Which One Actually Keeps Your Gear Dry?\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable width=\"100%\" style=\"width: 100.036%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 49.8022%;\"\u003e \u003cimg height=\"180\" width=\"142\" alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0528\/9613\/7401\/files\/pro-plus-line.webp?v=1764543345\"\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 49.8022%;\"\u003e\u003cspan\u003eWhat is our Pro+ Line? Products with high-value technical fabrics like Ecopak, Xpac, and D50T. Pro performance at a friendlier price. More info on our \u003ca href=\"https:\/\/hilltoppacks.com\/pages\/three-levels-of-ultralight-performance\"\u003e3 tierd approach to Ultralight Performance here\u003c\/a\u003e.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hilltop Packs LLC","offers":[{"title":"Small","offer_id":48330235838634,"sku":"8628291666177-45686990864641","price":38.0,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":48330235871402,"sku":"8628291666177-45686990897409","price":42.0,"currency_code":"USD","in_stock":true},{"title":"Large","offer_id":48330235904170,"sku":"8628291666177-45686990930177","price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0685\/2008\/3626\/files\/pack-liners-d50t-fabric-4466107_copy.webp?v=1779198238","url":"https:\/\/mammothnation.com\/products\/ultralight-pack-liners-backpack-liner","provider":"Mammoth Nation","version":"1.0","type":"link"}