Super softness meets sleek style in Brooks Sports® Women's Glycerin StealthFit 21 Running Shoe. The streamlined, adaptable upper delivers a near-seamless fit and joins forces with more plush DNA LOFT v3 cushioning than before for unbeatable comfort on the go. Engineered Recycled flat knit upper provides comfort and breathability and offers blend of stretch and compression that moves with foot Super-soft, nitrogen-infused DNA LOFT v3 cushioned midsole (2mm more than DNA LOFT v2) Smooth, stable transitions from broad platform Durable Rubber traction outsole Sustainability: 64.4% Recycled materials in the upper; 1.38 Plastic bottles diverted from landfills Product Features: Weight:8.3 oz. (235 g) Upper:Engineered Recycled Flat Knit Midsole:DNA LOFT v3 Cushioning Outsole:Non-slip, non-marking Rubber traction Support (shank):Stability Lining:Breathable Mesh Height:10mm drop Brooks Sports Women's Glycerin StealthFit 21 Road Running Shoe