Clarks Original Trigenic Flex Shoes Truffle Nubuck Green Sitting on top of a unique three part vibram sole unit, the Trigenic Flex Trainer has a premium design with printed suede uppers & great stitching details. Flat tonal laces fasten up the shoe & a contrasting leather tab is at the heel. Vibram sole Printed suede Flat laces Contemporary, technical & lightweight design Description by Rob