The NOOSA TRI™ 13 shoes are built for triathletes,but they're not the only ones who can appreciate this model.With the addition of GUIDESOLE™ technology,this shoe just got lighter in weight and is now designed for a wide range of runners.The NOOSA TRI™ 13 shoe's GUIDESOLE™ technology is built around a philosophy that aims to lessen the overall load placed on lower limbs by implementing a curved sole design.These elements help increase running efficiency by reducing the movement of the ankle.This technology is proven to help runners feel fresher longer,creating a smoother and more comfortable ride.The NOOSA TRI™ 13 shoe has FLYTEFOAM® technology in the midsole,which gives the runner a lightweight feel and more cushioning for longer runs.Following a more sustainable design approach,this shoe also uses fewer resources to color the sockliner.Additionally,the AHARPLUS™ outsole is designed to improve durability and extend the life of the shoe.Now even lighter in weight,this triathlon shoe is functional for a variety of running workouts,including tempo runs,long training runs,and racing.