361 Sensation 4 Women's White/Black The updated 361 Sensation 4 takes over after being awarded Runner's World 'Best Debut' with new construction for an even better fit. The lightweight upper provides excellent breathability while the new vamp promotes more natural movement and running efficiency. Dynamic stability features like a medial post and the lightweight QU!K Spine shank give runners with mild to moderation pronation the added support they need to run. Upper: Features a lightweight and seamless jacquard mesh material. Padded tongue and heel collar enhance comfort. Lace-up front offers an adjustable fit. Midsole: A full-length QU!KFOAM midsole provides excellent cushioning and a smooth ride. Outsole: Ergonomically designed platform featuring enhanced forefoot cushioning with durable lightweight traction and flexibility. QU!K Flex 4Foot Engineering provides a more natural and balanced toe-off for better acceleration.