Hi-Tec V-Lite Infinity Indoor Shoes SYS Midsole Technology - Helps with support, cushioning, energy, spring and stability to aid the increase of performance. Peak Force Outsole - None marking peak force outsole preventing them indoor marks. Abrazone medial drag guard - To provide more stability on an indoor surface. Ortholite Sockliner - Boasting the most advanced proprietary technology, allowing you to push through even the toughest boundaries OrthoLite promises a combination of comfort and support while fighting odour with an environmentally friendly biocide treatment.