Preventing blisters and promoting proper posture and balance, the Injinji Lightweight No-Show Toe Sock features an anatomical five toe sleeve design to properly align toes. The moisture management fiber construction wicks way sweat and keeps feet dry. Ventilation and breathability are provided by the mesh top and ultra thin durable fit. Built in arch support creates a secure and stable fit while the reinforced heel adds durability. 75% CoolMax/22% nylon/3% lycra. Imported.