Most running safety gear and standard military PT belts are uncomfortable and can negatively impact your performance when it matters most. Whether you're running at night and need visibility clothing, or you're required to wear a PT belt, the FlipBelt Reflective PT Belt is your best bet for visibility.The FlipBelt Reflective PT running and excercise belt is made with high quality moisture wicking micropoly fabric and stretch-friendly, ultra-reflective 3M materials. The innovative large-pocket tubular design allows you to easily and securely carry large phones, keys, IDs, cards, cash, small medical devices and more without a backpack, running pouch or running armband. FlipBelt fits securely around your waist without riding up or bouncing and comfortably fits over clothing for maximum reflectiveness.Upgrade your reflective training gear with a FlipBelt Reflective PT Belt that won't get in your way.Key Features:360 degree 3M reflective,Moisture wicking 92% micropoly 8% lycra,Internally secured key hook,Machine wash and dry,Sizing: (Mens)XS - 23-26",S - 26-30",M - 30-32",L - 32-36",XL - 36-41".Sizing: (Womens)XS - 4-6,S - 6-8,M - 10-12,L - 14-16,XL - 16-18.