{"type":"firestarter.listing","listing":{"id":"lst_HTDBd08y","product_name":"Essential Racerback Sports Bra","category":"Bras","description":"Seamless, compressive support hugs your body while body-mapped contours provide added lift, separation, and stability. The integrated shoulder strap and racerback design maximize mobility, sitting squarely on your shoulders and away from your neck, while providing all-day comfort. Pullover style with removable pad sleeves (pads not included) adds versatility.\nPerfect for all your adventures, such as trail running, single-track laps, boulder projects, or your next HIIT session, this bra moves with you wherever your day—or your workout—takes you.\nHeavyweight 4-way POWRspun™ knit combines 76% extra-fine ZQ Merino, 14% nylon, and 10% elastane for durability, stretch, and breathability. Naturally sustainable and BPA-, PFAS-, and forever-chemical-free. \n\nbuilt with higher compression and heavier material than our Bralette and Busty Bras\n\nBody-mapped contours provide additional support and separation \n\n\nsleeves for removable bra pads (pads not included)\n\n\npullover style with a racerback design for a full range of motion\n\n\nBonus: Our ZQ, OEKO-TEX 100, and RWS-certified Merino is also regenerative and sustainable.\nDouble Bonus: We hear it all the time… Our Racerback Sports Bra is the high-five you need to crush your next PR.","images":["https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra-2.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra-3_f46275d2-319b-4304-8c3b-49427f00be82.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra-5.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra-6.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra-7.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/essential-racerback-sports-bra-4572679.jpg?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra-9.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN-Performance-Innerwear-Compressive-Racerback-Sports-Bra-27.webp?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Deep_Willow_Green_Racerback_Compressive_Bottoms_Seamless_Merino-6.jpg?v=1776939139","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Deep_Willow_Green_Racerback_Compressive_Bottoms_Seamless_Merino-62.jpg?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Essential_Seamless_Merino_Wool_Racerback_Sports_Bra_in_Deep_Willow_Back_View.jpg?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Essential_Seamless_Merino_Wool_Racerback_Sports_Bra_in_Deep_Willow_2.jpg?v=1776939139","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Essential_Seamless_Merino_Wool_Racerback_Sports_Bra_in_Deep_Willow_Back_View_2.jpg?v=1776939138","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Ocean_Cavern_Racerback_Seamless_Merino_wool_Compressive_shorts-195_d18c9706-1012-47ad-9f74-d961a71ef32c.jpg?v=1778676159","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Women_s_Seamless_Merino_Wool_Compressive_Shorts_Night_Sky_Compressive_Short-16_74c50635-2c9e-4bbc-ac3a-d85d5b1f3ffa.png?v=1778663122","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Ocean_Cavern_Racerback_Seamless_Merino_wool_Compressive_shorts-200_0605599f-b268-4139-9dcb-b76359288f00.jpg?v=1778663390","https://cdn.shopify.com/s/files/1/0071/9372/2964/files/BRANWYN_Ocean_Cavern_Racerback_Seamless_Merino_wool_Compressive_shorts-236.jpg?v=1778676235"],"price":72.25,"currency":"USD","in_stock":true,"inventory_qty":69993,"dynamic_pricing":false,"listed_at":"2026-06-18T20:43:01.494Z"},"share_url":"https://firestarter.network/l/lst_HTDBd08y","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_HTDBd08y' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Essential Racerback Sports Bra' and a budget_max comfortably above $72.25 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."]}}