Put your run into overdrive when you crank up the intensity with the light and swift Saucony Endorphin 2 Racing Shoes! Predecessor: Endorphin. Support Type: Neutral. Cushioning: Lightweight, flexible response. Surface: Track. Differential: 0 mm. Upgraded woven upper locks in the foot for long distance comfort from Mile to 10k . Lace-up closure. Thin comfort tongue and contoured collar. Breathable synthetic lining offers a great in-shoe feel. Thin, molded foam insole. SSL (Saucony Super Lite) EVA molded midsole maximized rebound and durability while minimizing weight. PWRTRAC rubber outsole provides enhanced traction and abrasion resistance. Imported. Measurements: Weight: 3.6 oz Product measurements were taken using size 9.5, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.