From OS1st:

The WP4® Wide Wellness Performance Socks feature extra room and seamless comfort for sensitivity. These ultra-comfortable socks are made with Nano-Bamboo Charcoal that has been shown to help maintain healthy feet and skin. 

For the best fit, it is important that you use the size chart before ordering.

• Targeted Conditions: Diabetes friendly, circulation support, sensitive feet, edema, neuropathy
• Medical grade compression
• Made with Nano-Bamboo Charcoal
• Seamless construction with non-binding comfort
• Shaped-to-fit design that reduces pain and friction
• Contoured, ultra-soft padding
• Mid-food/ Arch Support structure
• Left/ right design with Y-gore heal

Care Instructions: Wash gentle on cold, tumble dry on low heat. No bleach or fabric softener.