FXD Boots are in Mens sizing see below for estimated size conversion FXD WB-2 4.5 Safety Boot Features NITROLITE proprietary phylon midsole cushioning material. Slip, oil and heat resistant 62 durometer rubber outsole. High density 67 durometer green heel insert. Poron midsole insert for additional heel cushioning. Ventilated, antimicrobial PU footbed, sculpted for the correct arch support. Outsole side abrasion panel. Lightweight composite safety toe. Bump cap with extra 1.5mm TPU in the heavy wear area for increased durability. Ballistic high abrassion resistant thread on all stitching. Protective TPU heel kick panel. YKK 10 guage coil zip angled for easy entry and smooth movement. Coated microfibre collar with venitilation for support and breathability. Moulded TPU powerstrap eyestay for durability. Nylon heel tab. Coolmax engineered lining is moisture wicking and accelerates drying. Moulded upper eyelets for once-only lacing. Moulded TPU grip tab on tongue. 5US Men's - 6AU/US Women's6US Men's - 7AU/US Women's7US Men's - 8AU/US Women's8US Men's - 9AU/US Women's9US Men's - 10AU/US Women's