{"product_id":"mens-karhu-fusion-5-0","title":"Men's Karhu Fusion 5.0","description":"\u003cp\u003eBuilt for runners seeking a smooth and energetic ride, the Karhu Fusion 5.0 introduces the next generation of Karhu running technology.\u003c\/p\u003e\n\u003cp\u003eA repositioned Fulcrum unit guides the foot efficiently through each stride, creating a more propulsive running experience. Combined with an amplified toe spring, the Fusion 5.0 delivers a responsive toe-off with added momentum and energy return.\u003c\/p\u003e\n\u003cp\u003eThe midsole features all-new AeroFoam NOVA, allowing for a higher stack height and a softer, more cushioned ride with improved rebound. A critical foam insole provides durable underfoot comfort that maintains its performance over time.\u003c\/p\u003e\n\u003cp\u003eDesigned for a balanced fit, the Fusion 5.0 offers a secure midfoot lockdown while maintaining ample room in the toe box, creating a comfortable running experience for everything from daily training to longer mileage days.\u003c\/p\u003e\n\u003cp\u003eTechnical Details\u003c\/p\u003e\n\u003cp\u003eHeel-to-toe drop: 6mm\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eHeel stack height: 33mm\u003c\/p\u003e\n\u003cp\u003eSupport level: Neutral\u003c\/p\u003e\n\u003cp\u003eWeight: 280g\u003c\/p\u003e","brand":"Karhu","offers":[{"title":"Black\/Bamboo \/ 7","offer_id":56484777689467,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":false},{"title":"Black\/Bamboo \/ 7.5","offer_id":56484777722235,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":false},{"title":"Black\/Bamboo \/ 8","offer_id":56484777755003,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 8.5","offer_id":56484777787771,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 9","offer_id":56484777820539,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 9.5","offer_id":56484777853307,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 10","offer_id":56484777886075,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 10.5","offer_id":56484777918843,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 11","offer_id":56484777951611,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 11.5","offer_id":56484777984379,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 12","offer_id":56484778017147,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":true},{"title":"Black\/Bamboo \/ 12.5","offer_id":56484778049915,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":false},{"title":"Black\/Bamboo \/ 13","offer_id":56484778082683,"sku":null,"price":145.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0521\/3578\/8698\/files\/Image02-10-2026at14.06_1.webp?v=1790946467","url":"https:\/\/fitstuff.co.uk\/products\/mens-karhu-fusion-5-0","provider":"FITSTUFF","version":"1.0","type":"link"}