{"product_id":"3f-ul-gear-upgrade-tyvek-sleeping-bag-cover-ventilate-moisture-proof-warming-every-dirty-inner-liner-bivy-sleeping-bags","title":"Tyvek Sleeping Bag Liner \u0026 Bivy Cover | Moisture-Proof Ultralight | Ventilating","description":"\u003cp class=\"MsoNormal\" style=\"margin-bottom: 5.5pt;\"\u003e\u003cspan style=\"color: #111111;\"\u003eA sleeping bag liner does three things a sleeping bag alone cannot: it adds warmth to any bag, it keeps the bag interior clean so you wash the liner instead of the bag, and in this case it acts as a standalone bivy on warm nights. Built from Tyvek — the same ultralight moisture-barrier material used in ultralight backpacking gear — it breathes, packs to nothing, and lasts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 3.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 3.0pt;\"\u003e\u003cb\u003eWhat's Included:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoListParagraph\" style=\"text-indent: -.25in; mso-list: l0 level1 lfo1; margin: 0in 0in 3.0pt .5in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan dir=\"LTR\"\u003e\u003c\/span\u003e\u003cspan style=\"color: #111111;\"\u003eTyvek construction — ultralight moisture-barrier material, breathable but water-resistant, packs extremely small\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoListParagraph\" style=\"text-indent: -.25in; mso-list: l0 level1 lfo1; margin: 0in 0in 3.0pt .5in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan dir=\"LTR\"\u003e\u003c\/span\u003e\u003cspan style=\"color: #111111;\"\u003eSleeping bag liner mode — slides inside any sleeping bag to add warmth and create a washable barrier\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoListParagraph\" style=\"text-indent: -.25in; mso-list: l0 level1 lfo1; margin: 0in 0in 3.0pt .5in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan dir=\"LTR\"\u003e\u003c\/span\u003e\u003cspan style=\"color: #111111;\"\u003eBivy cover mode — use as a standalone moisture-proof shell over a quilt or on warm nights alone\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoListParagraph\" style=\"text-indent: -.25in; mso-list: l0 level1 lfo1; margin: 0in 0in 3.0pt .5in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan dir=\"LTR\"\u003e\u003c\/span\u003e\u003cspan style=\"color: #111111;\"\u003eVentilating design — Tyvek breathes to prevent condensation buildup inside\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoListParagraph\" style=\"text-indent: -.25in; mso-list: l0 level1 lfo1; margin: 0in 0in 3.0pt .5in;\"\u003e\u003c!-- [if !supportLists]--\u003e\u003cspan style=\"mso-list: Ignore;\"\u003e•\u003cspan style=\"font: 7.0pt 'Times New Roman';\"\u003e       \u003c\/span\u003e\u003c\/span\u003e\u003c!--[endif]--\u003e\u003cspan dir=\"LTR\"\u003e\u003c\/span\u003e\u003cspan style=\"color: #111111;\"\u003e2 variants — regular and long size options\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 3.0pt;\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 3.0pt;\"\u003e\u003cb\u003ePerfect For:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" style=\"margin-bottom: 5.5pt;\"\u003e\u003cspan style=\"color: #111111;\"\u003eUltralight backpackers who want to extend a bag's temperature rating without carrying a heavier bag. Hostel and hut-to-hut travelers who need a sanitary liner. Thru-hikers managing bag cleanliness over long trails.\u003c\/span\u003e\u003c\/p\u003e","brand":"The Rugged Yuppie","offers":[{"title":"A","offer_id":48380606742779,"sku":"14:29#A","price":83.99,"currency_code":"USD","in_stock":true},{"title":"B","offer_id":48380606775547,"sku":"14:366#B","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0686\/4735\/4619\/files\/S41f0dfb789ec4d8e8fa59f594b4a8a2d3.webp?v=1772504826","url":"https:\/\/theruggedyuppie.com\/products\/3f-ul-gear-upgrade-tyvek-sleeping-bag-cover-ventilate-moisture-proof-warming-every-dirty-inner-liner-bivy-sleeping-bags","provider":"The Rugged Yuppie","version":"1.0","type":"link"}