BNWT Lululemon Power Stride Tab Socks 3 Pack White Gray Black Size Medium.6.5/8.6 Designed for Running and Training Light terry cushioning wraps around your foot for added protection—only where you need it 360° arch support Seamless toe construction Anatomical left and right foot construction 3D-knit PerformaHeel™ with added elastic through the Achilles creates a shaped fit and a locked-in feeling Tab is padded for extra comfort Naturally breathable mesh in high sweat areas helps keep your feet cool and dry Feels softer, breathes better Stays upright, but not too tight. Added elastane improves stretch and shape retention 93% Nylon, 7% Elastane