Endorphin Trainer Shoe Size:8.5 Our innovative GuideRails™ technology -

Our innovative GuideRails™ technology - shortened to "GTS" for "Go-To Support" - supports your body in its natural motion path while keeping excess movement in check

2-liter bladder pocket has internal routing for a hose

contrast and detail

its sleeveless design and relaxed fit through the body and hips give you a casual look while you power through your workout

Lightweight net mesh for breathability during long matches on hot days

Endorphin Trainer Shoe Size:8.5 Our innovative GuideRails™ technology -The Endorphin franchise expands with a high tech training powerhouse. Built for runners who demand both speed and durability, the Endorphin Trainer running shoe brings race day innovation to everyday training. At its core, a top layer of IncrediRUN superfoamour lightest, most responsive midsolepairs with a durable bottom PWRRUN layer to create an ultra stable, energy efficient platform. A length carbon fiber plate, tuned specifically for training,