SPRINT WEB UPPER PROVIDES THE SAME SUPPORT AS PRECEDING MODEL WITH 30% LESS WEIGHT: 250G (size 8.5) REDUCED WEIGHT THROUGH DELETION OF PREVIOUS MODEL&8217;S LACE COVERS OR INTERNAL/EXTERNAL SHROUDS SUPER SOFT SUEDE COLLAR FOR MINIMAL IRRITATION IN THE ANKLE AREA FULL SHARKSKIN OUTSOLE FOR UNCOMPROMISING GRIP ON THE TRACK ULTRA HIGH REBOUND ADIPRENE+ FOR THE ULTIMATE IN RUN UP SPEED & LIFT CYLINDRICAL COMPRESSION PIN AS STANDARD IMPROVES ENERGY RETURN & INCREASES ACCELERATION