{"type":"firestarter.listing","listing":{"id":"lst_6YazMcO3","product_name":"Impact Chalk","category":"Antiperspirant,","description":"Impact Chalk by ZIGZAG Climbing | Eco-Friendly Grip Chalk for Climbing, Training, Gymnastics & CrossFit\nPremium Grip Chalk for Climbers, Athletes & Hard Training\nImpact Chalk by ZIGZAG Climbing is built for athletes who need dependable grip when the session gets serious. Made with 100% magnesium carbonate, this premium chalk helps keep hands dry, friction-ready, and confident through climbing, bouldering, gym training, gymnastics, CrossFit, weightlifting, and high-intensity functional fitness.\nWhether you are pulling on tiny crimps, moving through a campus board session, swinging on rings, hitting barbell lifts, or grinding through a CrossFit workout, Impact Chalk gives your hands the dry, reliable feel you need to stay focused on performance.\nAnd it does more than improve grip. For every bag sold, 1 lb. of ocean-bound plastic is removed, making Impact Chalk a high-performance choice with a real environmental impact. ZIGZAG also lists the chalk as 100% magnesium carbonate, with a 50% powder / 50% nugget consistency, and packaging made from 13% sugar cane and 87% post-consumer recycled material. \n\nWhy Athletes Use Impact Chalk\nBetter grip when it mattersImpact Chalk helps absorb moisture and improve friction, giving climbers and athletes a more secure connection to holds, bars, rings, weights, and training tools.\nMade for climbing and boulderingIdeal for indoor climbing gyms, outdoor bouldering, sport climbing, trad climbing, board climbing, hangboard workouts, and competition-style training.\nGreat for CrossFit and weight trainingUse it for pull-ups, toes-to-bar, kettlebell work, Olympic lifting, deadlifts, farmer carries, rope climbs, and barbell cycling.\nUseful for gymnastics and bodyweight trainingA solid choice for rings, parallel bars, high bar, handstand work, calisthenics, ninja training, and any movement where dry hands and grip confidence matter.\nPerformance with purposeEach bag supports the removal of 1 lb. of plastic waste, a claim shown on the pro","images":["https://cdn.shopify.com/s/files/1/0711/8481/0224/files/Impact-Chalk_1.webp?v=1781129578","https://cdn.shopify.com/s/files/1/0711/8481/0224/files/Zig_Info.png?v=1781132262","https://cdn.shopify.com/s/files/1/0711/8481/0224/files/Impact-Chalk_6.webp?v=1781129578","https://cdn.shopify.com/s/files/1/0711/8481/0224/files/Outside_zig_zag.png?v=1781131936","https://cdn.shopify.com/s/files/1/0711/8481/0224/files/Zig_Climb.png?v=1781132262","https://cdn.shopify.com/s/files/1/0711/8481/0224/files/Zig_Gymnast.png?v=1781132262","https://cdn.shopify.com/s/files/1/0711/8481/0224/files/Impact-Chalk_2.webp?v=1781129578"],"price":19.95,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:46:59.336Z"},"share_url":"https://firestarter.network/l/lst_6YazMcO3","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_6YazMcO3' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Impact Chalk' and a budget_max comfortably above $19.95 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."]}}