A runner’s favorite the Women’s Brooks Adrenaline GTS 23 Running Shoe. Mesh upper in a running shoe style with a round toe. Lace up front. 37.3 % recycled materials in the upper. Padded collar and tongue. Smooth lining with a padded insole. Midsole drop 12mm. Weight 9.0oz / 255.1g Updated midsole is now 100% DNA LOFT cushioning for a soft smooth ride. DNA LOFT is our soft cushioning yet remains durable and doesn’t feel too squishy. GuideRails® technology adds support by keeping excess movement in check. So you stay in your natural stride even when you get tired. Durable rubber segmented crash pad outsole.