{"type":"firestarter.listing","listing":{"id":"lst_jBs2aper","product_name":"Men's Primal Zen","category":"Primal Zen","description":"We didn’t call this shoe “Zen” for nothing. In shoes this comfortable, all of your worries will just slip away. This super minimalist, kicking-around-town shoe offers a wider outsole width than the Primal 3, and a touch more cushion while still keeping the weight off. The Primal Zen's slick construction also includes an attached tongue that won't fall out of position, and slightly stretchy laces to give you the perfect fit across the top of your foot. The cork footbed guarantees your feet will stay cool and comfortable, with or without socks. With so much comfort designed into this shoe, you'll truly feel like you're wearing nothing at all!\nThe Primal Zen has quickly become a go-to favorite in the fitness space. With its flat outsole, wide toe box and low stack height, it keeps you grounded and stable through every rep. Flexible, breathable materials move with you, making it a solid choice for weightlifting, cross-training, and high-intensity workouts.\nLearn More: Primal Zen vs. Primal 3: What's the Difference?\nFeatures\n\nFit: Lems WIDEST Natural-Shape™\nUpper: Microfiber & air mesh (Night Sky colorway is made with a newly engineered mesh for maximum breathability)\nLining: 100% polyester\nOutsole: Injection Blown Rubber (IBR)\nInsole: Minimal Cork Insole\n\nStack Height: 11.0mm\nDrop: Zero-Drop\nWeight: 8.2 oz (Men's 10)\nTongue: Gusseted\nVegan: Yes\n\nCare & Treatment: Nikwax\n\n\nFor additional information please check out our FAQ page!\nPrimal Zen Sizing\nWe find that the Primal Zen fits true to size, so you can order your normal US size. This is a unisex shoe, so the width is the same for both men's and women's. \nAs with all Lems shoes, if you need more volume inside the shoe or increased ground contact, you can remove the insole. If you have any questions, feel free to contact our customer service team at 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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_jBs2aper' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Men's Primal Zen' and a budget_max comfortably above $130.00 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."]}}