{"type":"firestarter.listing","listing":{"id":"lst_y5lyLLEC","product_name":"Legacy Southwest 40 by Hyperlite Mountain Gear","category":"Backpacks","description":"\nShips in 1-2 business days | Based in Biddeford, ME | Est. 2010\nHyperlite Mountain Gear's close quarters pack\nThe Southwest 40 keeps you honest about packing smart and efficiently on weekends or section hikes where the supplies you may need along the way are always within reach. When the route is thick with vegetation, requires the occasional up and over immovable objects, and calls for “suck in your gut and shimmy through” type moves, the Southwest is the backpack you want up close and personal. This pack family is made specifically for tough adventures that would rip most other ultralight-style packs to shreds. \nFeatures:\n\n\nInternal Frame: Integrated ¼” foam back panel pad, 2 removable aluminum stays \n\n\nPadded Hip Belt\n\n\nThree external, solid Hardline with Dyneema® pockets (large front pocket and two side pockets)\n\n\nRoll-top closure system with side compression straps for vertical compression\n\n\nTop Y-strap compression strap\n\n\nTwo side compression straps for horizontal compression\n\n\nTwo zippered hip belt pockets\n\n\nAdjustable sternum strap with self-tensioning elastic and whistle\n\n\nInternal 8\" x 14” mesh sleeve for hydration bladder\n\n\nIntegrated 1/4” foam back panel pad\n\n\nTwo removable, contoured aluminum stays\n\n\nFour exterior tri-glide buckles for optional pack accessory straps\n\n\nGrab loop and ice axe loop\n\n\n_______________________________________________\nSpecs\nVolume:\n\n\nMain body: 40L\n\n\nExternal” 9.8L\n\n\nExternal Pockets: 5\nRecommended Load Capacity: 40lbs\nSizing:\n\n\nX-Small: <15\" torso | <38.1cm\n\n\nSmall: 15”-17” torso | 38.1cm - 43.2cm\n\n\nMedium: 17”-19” torso | 43.2cm - 48.3cm\n\n\nLarge: 19”-21” torso | 48.3cm - 53.3cm\n\n\nTall: 21\"+ torso | 53.3cm+\n\n\n*See our backpack sizing page to learn how to fit a backpack\nWeight:\n\n\nWhite in size medium: 30.8oz | 873g\n\n\nBlack in size medium: 31.9oz | 904g\n\n\nDimensions: 30”H (fully unrolled) x 10.5W | 76.2cm H x 26.7cm W\n\n\nCircumference (top | bottom): 37.5” | 33.5”  /  95.3cm | 85cm\n\n\nMaterials:  \n\n\nBody: DCH50\n\n\nBottom: DC","images":["https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_1.png?v=1744924699","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_2.png?v=1744924705","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_3.png?v=1744924714","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_4.png?v=1744924725","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_8.png?v=1744924749","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_9.png?v=1744924755","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_10.png?v=1744924761","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_11.png?v=1744924772","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_12.png?v=1744924778","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_13.png?v=1744924785","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_14.png?v=1744924792","https://cdn.shopify.com/s/files/1/0537/1177/products/Southwest_40_by_Hyperlite_Mountain_Gear_15.png?v=1744924799","https://cdn.shopify.com/s/files/1/0537/1177/products/Southwest_40_by_Hyperlite_Mountain_Gear_16.png?v=1744924805","https://cdn.shopify.com/s/files/1/0537/1177/products/Southwest_40_by_Hyperlite_Mountain_Gear_17.png?v=1744924812","https://cdn.shopify.com/s/files/1/0537/1177/products/Southwest_40_by_Hyperlite_Mountain_Gear_18.png?v=1744924818","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_19.png?v=1744924826","https://cdn.shopify.com/s/files/1/0537/1177/products/Southwest_40_by_Hyperlite_Mountain_Gear_20.png?v=1744924832","https://cdn.shopify.com/s/files/1/0537/1177/products/Southwest_40_by_Hyperlite_Mountain_Gear_21.png?v=1744924839","https://cdn.shopify.com/s/files/1/0537/1177/products/Southwest_40_by_Hyperlite_Mountain_Gear_22.png?v=1744924845","https://cdn.shopify.com/s/files/1/0537/1177/files/Southwest_40_by_Hyperlite_Mountain_Gear_23.png?v=1744924852"],"price":369,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:42.984Z"},"share_url":"https://firestarter.network/l/lst_y5lyLLEC","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 ","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_y5lyLLEC' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Legacy Southwest 40 by Hyperlite Mountain Gear' and a budget_max comfortably above $369.00 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."]}}