The Performance Compression Crew Socks New in Package Size: Large Color: Gray Non-traction All-in-One Powerful Footwear!! The Performance Sock is the best compression sock for those who want plantar fasciitis support and ankle support in one comfortable sock they can wear for any activity. Whether you have flat feet or high arches, plantar fascia pain, or are simply looking for great arch support, the Performance Sock can help. Apolla socks are more like an orthotic than a sock, but more comfortable than an insert or insole. Each style of Apolla Socks fits your needs differently, but they all share our holistic patented support system. Targeted arch support Graduated compression Ankle Support Cushioning Moisture Wicking Antimicrobial Breathable Compression zones of 20-30 mmHg APMA Seal of Acceptance All of this helps reduce swelling and pain like achy legs, or edema, and increasing blood circulation helping your entire body feel incrementally better with every step!