Thoughtfully knitted with far-infrared (FIR) infused fabric and gradual compression technology, our unisex socks are designed to boost circulation for better foot and overall health. Enhanced Circulation Specially knitted with fabric incorporated with FIR using InfraCrystals Fabric Fusion Technology to enhance circulation for improved foot health. Comes with Gradual Compression Technology to boost blood flow for optimal comfort and support. Superior Comfort and Fit Designed with TrueFit Heel Support, featuring no specific heel angle to ensure flexible and durable wear. Specially knitted with 3D Omni-Stretch Technology for minimal seam design and maximum stretch. No designated front or back, making them wearable from any angle. Optimal Breathability and Support Comes with MacroGap Fabric Structure to offer optimal breathability for all-day comfort. Available in sizes M, L and XL these socks offer a true fit and unparalleled comfort every time.