Barely used. Lime/red/ebony color mix. With an updated DNA Loft V3 midsole and improved fit, the Glycerin 20 Running Shoe is back in its most comfortable iteration yet. This running shoe's unbeatable support gets a comfort boost with a new nitrogen-infused midsole that increases support and cushion on long runs. Road runner with increased softness for comfort on long runs Engineered mesh uppers boost breathability at a low weight OrthoLite sockliner offers support with each step Updated nitrogen-infused midsole for added comfort and response DNA Loft V3 is Brooks' softest cushioning to date Rubber sole with a broader silhouette for smoother transitions