Nathan Trail Mix Plus 3 Hydration Belt - 00010 Sizes:OSFA Advanced Chassis™ is a molded

Advanced Chassis™ is a molded insert embedded in the outsole

Original FootShape fit provides a roomy toe box for comfort and stability

The SUPERBLAST 3 is the ultimate "super-trainer

IP55 Water Resistant

Nathan Trail Mix Plus 3 Hydration Belt - 00010 Sizes:OSFA Advanced Chassis™ is a moldedCOMFORT FIT This ergonomically shaped, soft monofilament, multidirectional stretch belt is your new best friend. So keep your water, gels, and phone right around your waist (without the bounce) for safe keeping while you keep going down the trail or road. SECURE + STORE This reflective 2 bottle belt has all the bells and whistles. With secure holsters, you can have easy, one handed access to hydration or nutrition while you are on a run. The two shock