NEW Brooks Adrenaline GTS 23 Running Shoe in Black & White Brooks Adrenaline GTS 23 Running Shoe - Women's With update cushioning, the Brooks Adrenaline GTS 23 running shoe offers a perfect balance of support and softness for a smooth, soft ride. This recycled pair sports GuideRails® technology, DNA LOFT v2 cushioning, and an engineered air mesh upper. TECHNOLOGY Run Type: Road Pronation: Neutral Surface Type: Road, Track Engineered air mesh upper DNA LOFT v2 cushioning midsole GuideRails® technology adds support by keeping excess movement in check. Weight: 9.1oz / 258.0g Smoke free environment