Injinji Ultra Run - Crew Size:Large the MBX® Massage Ball is

the MBX® Massage Ball is ideal for targeting extreme discomfort is isolated areas such as calves

Maximum comfort

Non-friction ball glides smoothly over bare skin and clothing for an effective massage without resistance

seamless toe

If you are between sizes

Injinji Ultra Run - Crew Size:Large the MBX® Massage Ball isCushioned Support for High Impact Runs. The Injinji Ultra Run Crew toesock is built for runners tackling long distances and intense terrain. With extra terry cushioning in the toes and footbed, it offers superior impact protection on pavement or trail. The patented five toe design helps prevent blisters by eliminating skin on skin friction, while moisture wicking CoolMax fibers keep feet dry and comfortable. A ribbed crew height adds coverage and