Stance Kid's Performance Socks Snow Mid Cushion, Poly Blend, Over The Calf Height with Arh Support. Youth Size Y: 11-2 (M). Tropical Chill (Black with Light Green Floral). Model # K758C21TRO. Breathability, Performance Cushioning and Performance Arch Support. New with Tags $14.99. Shipped with USPS Ground Advantage Mail.