{"type":"firestarter.listing","listing":{"id":"lst_ucEHzRgP","product_name":"UltraLite 20°F Sleeping Bag by Western Mountaineering","category":"Quilts & Sleeping Bags","description":"\n\n\nShips in 1-2 business days | Based in San Jose, CA | Est. 1970\nA luxurious 3-season, 20-degree sleeping bag in a traditional mummy bag cut with a full draft collar.\nIf your summer bike tour is going to take you through different climates, then the UltraLite is a good choice. With a 59″ | 150cm shoulder girth, this efficient bag is good to 20°F | -7°C. The full-down collar helps to seal in heat around your neck without adding excess bulk, and 16oz | 454g. of high lofting down pumps this bag to 5″ | 13cm. The total weight of this very compressible package is only 1 lb. 13 oz | 822g.\nFeatures:\n\nContinuous baffles allow down to be shifted from one side of the bag to the other\n\nDifferential cut to promote proper lofting and protect against down compression\n\nFull-length #5 YKK Zipper\nFull Down Collar\n\nIncludes:\n\nStuff sack\nStorage sack\n\n_________________________________________________\nSpecs\nTemperature rating: 20°F | -7°C\nPacked size: 7\" x 13\" | 18cm x 33cm\nSizing: \n\n\n\n Size\n5'6\" | 165cm\n6'0\" | 180cm\n6'6\" | 200cm\n\n\nFits Up to \n\n≤ 5'6\" | 165cm\n\n6'0\" | 180cm\n6'6\" | 200cm\n\n\nInside Shoulder Girth\n59\" | 150cm\n59\" | 150cm\n60\" | 152cm\n\n\nInside Hip Girth\n51\" | 130cm\n51\" | 130cm\n52\" | 132cm\n\n\nInside Foot Girth\n39\" | 99cm\n39\" | 99cm\n39\" | 99cm\n\n\n\n \nWeight:\n\n\n\n Size\n5'6\" | 165cm\n6'0\" | 180cm\n6'6\" | 200cm\n\n\nFill Weight\n15oz | 425g\n16oz | 454g\n17oz | 482g\n\n\nTotal Weight\n28oz | 794g\n29oz | 822g\n31oz | 879g\n\n\n\n \nLoft: 5.5\" | 14cm (total, both sides)\nMaterials:\n\nOuter Fabric: 12D Nylon ExtremeLite™\nInner Fabric: 15D Ripstop Nylon\nInsulation: 850+ Fill Power Goose Down*\nHardware: #5 YKK Zipper\n\nMade in the U.S.A.\n_________________________________________________\n*Western Mountaineering has been using ethical down for decades. They personally audit their main supplier regularly and some of the inspections are made without advance scheduling. This farm is highly ethical; the geese are raised to old age for their eggs, get to roam the grounds during the day and nest in a specialized insu","images":["https://cdn.shopify.com/s/files/1/0537/1177/files/UltraLite_20_F_Sleeping_Bag_by_Western_Mountaineering.png?v=1750259573","https://cdn.shopify.com/s/files/1/0537/1177/files/UltraLite_20_F_Sleeping_Bag_by_Western_Mountaineering_1.png?v=1750259579","https://cdn.shopify.com/s/files/1/0537/1177/files/UltraLite_20_F_Sleeping_Bag_by_Western_Mountaineering_2.png?v=1750259586","https://cdn.shopify.com/s/files/1/0537/1177/files/UltraLite_20_F_by_Western_Mountaineering_3.png?v=1750259604"],"price":640,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:44.593Z"},"share_url":"https://firestarter.network/l/lst_ucEHzRgP","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_ucEHzRgP' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy UltraLite 20°F Sleeping Bag by Western Mountaineering' and a budget_max comfortably above $640.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}