Stride Rite SRT SM Colin Sneaker (Infant) 100% Leather, Suede Imported Rubber sole Keep your look naturally styled to perfection with the SRT SM Collin. Premium leather upper features bold stitching. Hook-and-loop closure for a secure fit. Natural Motion System&#174; mimics barefoot walking, and has the flexible stride path and natural propulsion that babies need to grow into strong walkers. Sensory Response Technology&#8482; helps mimic barefoot walking by having sensory pods on the outsole to help kids feel the ground. Flexible and lightweight outsole helps kids learn to adapt to uneven surfaces. Imported. Measurements: Weight: 2 oz Product measurements were taken using size 3 Infant, width M. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.