The Performance Shock is the perfect sock for dancers who want dancer footwear with arch support, ankle support, and traction. It complements any dancewear, leotard, or costume, and is the epitome of contemporary style. It's also wonderful in tap shoes, as a replacement for ballet shoes at barre warm-up, for recovery after pointe shoes, and as a leg saver on carpet at conventions! 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* shown in multiple studies to reduce force by 7-8% 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!