Opti-X Anti-slip Crew White Size:37 - 39 Court-Optimized: Soft court herring bone

Court-Optimized: Soft court herring bone design with a 30° self-cleaning angle

Compression stitching at ankle

The backpack has an expand function so it can expand from Daypack to Travel backpack with an extra 20% volume

Practical features

One benefit is that the shoes does not need to be as tight to protect you from friction blizzards as the sock will provide anti-slip features

Opti-X Anti-slip Crew White Size:37 - 39 Court-Optimized: Soft court herring bonePerformance anti slip sock with compression technology stitching across the ankle for support. Featuring the latest technology in anti slip yarn and design for unrivalled performance and grip. One benefit is that the shoes does not need to be as tight to protect you from friction blizzards as the sock will provide anti slip features. Technical description features Ventilation channels V heel Compression stitching at ankle Thin pique knit upper and