Adjusting to Newton running shoes will depend upon several factors including: your current running shoes

elbows and ribs

It Creates Fine Texture & A Butter-Soft Feel While Not Sacrificing Durability

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New EvoShield PRO-SRZ Protective Wrist Guard Series Red/White Medium Medium:Red/White Adjusting to Newton running shoesNEW SOFT NEOPRENE compression sleeve with molded pull tab and interior pocket for Gel To Shell Wrist Shield (included) GEL TO SHELL TECHNOLOGY begins soft and flexible, transforms to hard and protective in minutes DISPERSION TECHNOLOGY spreads the force across the surface of the shield, minimizing felt impact SIZING: Measure your wrist circumference to determine the best fit S (5" 6"), M (6" 7"), L (7" 8"), XL (8" 9") SLEEVE AND SHIELD ARE HAND