Under Armour Block City Women’s Indoor, Squash, Racquetball Shoes Black/White : Design for the demand of fast, indoor court play, the Under Armour Block City Volleyball shoe is highly durable and sturdy. A 3D toe cap protects the front of the foot and resists wear in that area while the herringbone outsole pattern provides superior traction on indoor surfaces. Coated mesh paneling throughout offers comfortable and breathable support. Upper:Lightweight forefoot and mesh toe box provides stable support and breathability. Lace-up front offers an adjustable fit. 4D Foam® sockliner molds to the shape of your foot, eliminating slippage and providing underfoot comfort. Midsole:The full-length Charged Cushioning® midsole absorbs impact and converts it into responsive comfort.. Outsole: A herringbone outsole pattern with strategically placed diamond shaped insets for enhanced grip and traction.