{"product_id":"vireo-ul-sleeping-bag","title":"Vireo UL Sleeping Bag","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe Vireo was designed with a single purpose in mind; fast and light alpine climbs where every gram counts. With no hood, no zipper and a variable fill (the lower half is rated at 25ºF \/ -4ºC, the upper half 45ºF \/ 7ºC) the Vireo shaves every last ounce. For maximum efficiency and warmth, pair the bag with a down jacket to not only keep you cozy but also minimize extra gear and weight when it matters most. \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"collateral-block collateral-block--product_description_wrapper\"\u003e\n\u003cdiv class=\"box-collateral box-description\"\u003e\n\u003cdiv class=\"std\"\u003e\n\u003cul\u003e\n\u003cli\u003eNo zipper to conserve weight and bulk\u003c\/li\u003e\n\u003cli\u003eDrawcord on open end to cinch off apertures\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePertex® Diamond Fuse 15 denier footbox that offers more abrasion protection for more nights at camp\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eDesigned to be worn with a down jacket for upper-body warmth\u003c\/li\u003e\n\u003cli\u003eDifferential fills - lower half is filled to 25ºF \/ -4ºC while the top half is filled to 45ºF \/ 7ºC\u003c\/li\u003e\n\u003cli\u003eStuff sack and cotton storage bag included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Feathered Friends","offers":[{"title":"68\" \/ Cerulean","offer_id":52304317120794,"sku":"7925","price":429.0,"currency_code":"USD","in_stock":false},{"title":"74\" \/ Cerulean","offer_id":52304317153562,"sku":"7926","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0219\/8156\/files\/Screenshot2026-06-01at12.24.18PM.png?v=1780341883","url":"https:\/\/shop.alpineinstitute.com\/products\/vireo-ul-sleeping-bag","provider":"The Equipment Shop at American Alpine Institute","version":"1.0","type":"link"}