Saucony Endorphin Speed 3 Running Shoes Want to feel faster? Meet the Endorphin Speed 3 - a shoe that's the definition of swift. Designed with a new winged plate that helps support your run from toe-off to landing, it's everything you need to push your pace with ease. Lightweight Breathable Mesh Upper Designed to provide lightweight, breathable support, the Saucony Endorphin Speed 3 Running Shoes have been constructed using an engineered mesh upper. This upper has been fully redesigned to deliver a comfortable fit from heel to toe whilst still providing lightweight breathability and comfort. The minimal, engineered mesh will encase each foot in breathable comfort. The perforated mesh allows cool air to flow throughout the shoe to remove an uncomfortable heat build-up so you can remain cool, dry and comfortable at all times. The mesh acts as a lightweight second skin that creates a perfect microclimate for your feet to thrive in. As well as this, FORMFIT technology surrounds the f.