Vibram Fivefingers KSO Shoes Black Yellow Blue for all that irritating grit, sand and gravel for Men in Blue. The Vibram Five Fingers kso is a great shoe and has lots of great reviews. Vibram Five Fingers Kso are designed to Keep Stuff Out" and keep you comfortable. Especially good for sand running, stream fishing and bush walking. The Vibram Five Fingers KSO range has a stretch mesh upper that will filter out the bugs, dirt and grit to give you a comfortable ride where ever you may be. Vibram Five Fingers the bright blue is very popular among the more out going individuals! KSO is best for: Running, Fitness Training, CrossFit, Light Trekking, Bouldering, Water Sports & TravelMaterials:UPPER - abrasion-resistant stretch polyamide fabric& Hypalon strapsSOLE- Vibram TC-1 performance rubberFOOTBED- Antimicrobial microfiber*Machine washable. Air dry.