SFI approved to SFI 3.3/5 Standard with approval labels. · Suede leather outer, lined with soft fire-retardant nomex fabric. · High-grip moulded rubber sole, resistant to hydrocarbons. · Manufactured to a high standard. ADULT RACE BOOTS SIZING CHART.The item "STR Race Boot SFI Approved ORCI Rated Oval Stock Car Brisca Stock Rod Autograss" is in sale since Thursday, November 14, 2019. This item is in the category "Vehicle Parts & Accessories\Clothing, Protective Gear & Merchandise\Motorcycle & Motorsports Gear\Boots & Shoes". The seller is "mcgillmotorsport" and is located in Kirkcaldy, Fife. This item can be shipped worldwide.