{"product_id":"fast-feet-4-sock-4526030","title":"FAST FEET 4 SOCK","description":"There are lots of so-called aero socks out there. But the Castelli Fast Feet 4 Sock has the development and testing to back up the claim. The few socks that have been tested have probably been tested with a static, nonmoving test because it's easier. But a foot is always in motion, so we created a jig that replicates the movement of the lower leg. And we tested it on actual riders to verify the results. This sock can save 2 watts at 50 km\/h. The newest version has an updated cuff fit for more comfort and aerodynamic gains.","brand":"Castelli","offers":[{"title":"001 \/ s\/m","offer_id":58372620026240,"sku":"4526030_001_58_S-M","price":40.0,"currency_code":"EUR","in_stock":true},{"title":"001 \/ l\/x","offer_id":58372620878208,"sku":"4526030_001_58_L-X","price":40.0,"currency_code":"EUR","in_stock":true},{"title":"001 \/ xxl","offer_id":58372282614144,"sku":"4526030_001_58_XXL","price":40.0,"currency_code":"EUR","in_stock":true},{"title":"010 \/ s\/m","offer_id":58372721410432,"sku":"4526030_010_58_S-M","price":40.0,"currency_code":"EUR","in_stock":true},{"title":"010 \/ l\/x","offer_id":58372721246592,"sku":"4526030_010_58_L-X","price":40.0,"currency_code":"EUR","in_stock":true},{"title":"010 \/ xxl","offer_id":58372719378816,"sku":"4526030_010_58_XXL","price":40.0,"currency_code":"EUR","in_stock":true},{"title":"025 \/ s\/m","offer_id":58372717478272,"sku":"4526030_025_58_S-M","price":26.0,"currency_code":"EUR","in_stock":false},{"title":"025 \/ l\/x","offer_id":58372720918912,"sku":"4526030_025_58_L-X","price":26.0,"currency_code":"EUR","in_stock":true},{"title":"025 \/ xxl","offer_id":58372720230784,"sku":"4526030_025_58_XXL","price":26.0,"currency_code":"EUR","in_stock":true},{"title":"458 \/ s\/m","offer_id":58372717969792,"sku":"4526030_458_58_S-M","price":26.0,"currency_code":"EUR","in_stock":true},{"title":"458 \/ l\/x","offer_id":58372719968640,"sku":"4526030_458_58_L-X","price":26.0,"currency_code":"EUR","in_stock":false},{"title":"458 \/ xxl","offer_id":58372718526848,"sku":"4526030_458_58_XXL","price":26.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0963\/3307\/0720\/files\/image_88af9d16-85fd-4d6f-8395-9b88c77609d9.jpg?v=1783082281","url":"https:\/\/www.castelli-cycling.com\/en-eu\/products\/fast-feet-4-sock-4526030","provider":"Castelli Cycling","version":"1.0","type":"link"}