{"product_id":"calze-castelli-fast-feet-4-bianco","title":"Castelli Fast Feet 4 Socks - White","description":"\u003ch3 data-start=\"1148\" data-end=\"1182\"\u003e\u003cstrong data-start=\"0\" data-end=\"72\"\u003eCastelli Fast Feet 4 Socks – Maximum Aerodynamics and Comfort in the Saddle\u003c\/strong\u003e\u003c\/h3\u003e\u003cp data-start=\"76\" data-end=\"450\"\u003eThe \u003cstrong data-start=\"79\" data-end=\"109\"\u003eCastelli Fast Feet 4 Socks\u003c\/strong\u003e are designed and tested to deliver \u003cstrong data-start=\"148\" data-end=\"183\"\u003ereal aerodynamic performance\u003c\/strong\u003e, standing out from common “aerodynamic” socks available on the market. Engineered for the actual movement of the foot during pedaling, these socks save up to \u003cstrong data-start=\"370\" data-end=\"390\"\u003e2 watts at 50 km\/h\u003c\/strong\u003e, combining \u003cstrong data-start=\"403\" data-end=\"447\"\u003eaerodynamic efficiency and total comfort\u003c\/strong\u003e.\u003c\/p\u003e\u003cp data-start=\"452\" data-end=\"587\"\u003eIdeal for temperatures between \u003cstrong data-start=\"479\" data-end=\"509\"\u003e10°C and 38°C (50°F - 100°F)\u003c\/strong\u003e, they are perfect for road cycling, races, and high-speed training.\u003c\/p\u003e\u003ch3 data-start=\"589\" data-end=\"619\"\u003eKey Features\u003c\/h3\u003e\u003cul data-start=\"620\" data-end=\"1146\"\u003e\n\u003cli data-start=\"620\" data-end=\"689\"\u003e\n\u003cstrong data-start=\"622\" data-end=\"638\"\u003eLightweight\u003c\/strong\u003e: 48 g, for a high-performance sock without bulk\u003c\/li\u003e\n\u003cli data-start=\"690\" data-end=\"770\"\u003e\n\u003cstrong data-start=\"692\" data-end=\"723\"\u003eCastelli Fast Feet Design\u003c\/strong\u003e: developed and tested for real aerodynamics\u003c\/li\u003e\n\u003cli data-start=\"771\" data-end=\"872\"\u003e\n\u003cstrong data-start=\"773\" data-end=\"825\"\u003eFoot area inspired by the Castelli Rosso Corsa Sock\u003c\/strong\u003e: maximum comfort inside the shoe\u003c\/li\u003e\n\u003cli data-start=\"873\" data-end=\"964\"\u003e\n\u003cstrong data-start=\"875\" data-end=\"914\"\u003ePolyurethane anti-slip strip\u003c\/strong\u003e: keeps the sock perfectly in place\u003c\/li\u003e\n\u003cli data-start=\"965\" data-end=\"1076\"\u003e\n\u003cstrong data-start=\"967\" data-end=\"1017\"\u003eLycra® leg with engineered grooves\u003c\/strong\u003e: promotes air circulation and cooling\u003c\/li\u003e\n\u003cli data-start=\"1077\" data-end=\"1146\"\u003e\n\u003cstrong data-start=\"1079\" data-end=\"1101\"\u003eUpdated cuff\u003c\/strong\u003e: greater comfort and aerodynamic advantage\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3 data-start=\"1148\" data-end=\"1182\"\u003eWhy Choose the Fast Feet 4\u003c\/h3\u003e\u003cp data-start=\"1183\" data-end=\"1500\"\u003eUnlike other models tested only in static conditions, the \u003cstrong data-start=\"1252\" data-end=\"1276\"\u003eCastelli Fast Feet 4\u003c\/strong\u003e replicate the real movement of the leg during pedaling, combining \u003cstrong data-start=\"1350\" data-end=\"1390\"\u003eaerodynamics, lightness, and stability\u003c\/strong\u003e. They are the ideal choice for those who want to \u003cstrong data-start=\"1428\" data-end=\"1497\"\u003emaximize road performance without sacrificing comfort\u003c\/strong\u003e.\u003c\/p\u003e\u003cp data-start=\"1502\" data-end=\"1667\" data-is-last-node=\"\" data-is-only-node=\"\"\u003ePerfect for ambitious cyclists, these socks bring Castelli’s efficiency and technology \u003cstrong data-start=\"1596\" data-end=\"1613\"\u003eall the way to your feet\u003c\/strong\u003e, turning every pedal stroke into a real advantage.\u003c\/p\u003e","brand":"Castelli","offers":[{"title":"XXL","offer_id":61476700324170,"sku":"4526030-001","price":29.0,"currency_code":"GBP","in_stock":true},{"title":"S \/ M","offer_id":61476700356938,"sku":"4526030-001","price":29.0,"currency_code":"GBP","in_stock":true},{"title":"L \/ XL","offer_id":61476700389706,"sku":"4526030-001","price":29.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/0400\/8694\/files\/73acad69-35d9-4f4c-a0ea-f57045dc01f3.png?v=1774947588","url":"https:\/\/www.francesconibike.com\/en-gb\/products\/calze-castelli-fast-feet-4-bianco","provider":"francesconibike","version":"1.0","type":"link"}