Where can I find these tennis caps in Cairo?

link to the pic: http://www.google.com.eg/imgres?imgurl=http://www.custom-product.com/upload/456/459uij1/tennis-cap-nojt4005-545.jpg&imgrefurl=http://www.custom-product.com/wholesale-items/456/495-1/knitting-hat-71693.html&usg=__0B8_tUu-kTFMV7T0MyM7CeFAP-0=&h=686&w=700&sz=26&hl=ar&start=7&zoom=1&um=1&itbs=1&tbnid=BVcl4hNH9_TFBM:&tbnh=137&tbnw=140&prev=/search%3Fq%3Dtennis%2Bcap%26um%3D1%26hl%3Dar%26sa%3DN%26tbas%3D0%26biw%3D1024%26bih%3D461%26tbm%3Disch%26prmd%3Divns&ei=9FkOTpz0Lob5sgaO2MT5Dg