Thorlo Running Crew Sock Thick Cushioning xj

This running sock is engineered with heavyweight pads to prevent blisters and provide maximum shock absorptionProduct Features: Flat knit instep for less bulk and a better fit Heavyweight padding offers the most possible protection Protects against shock, impact, and abrasions Extra large is priced $1 higherSizing: Medium fits Men shoe size 5.5-8.5, Ladies shoe size 6.5-10 Large fits Men shoe size 9-12.5, Ladies shoe size 10.5-13 XL Fits Men shoe size 13-15