This fanny bag is made of neoprene material, which is very lightweight and breathable, and fit your body perfectly, without shaking or causing friction even during heavy exercise. Anti-slip and sweat-wicking features also keep you comfortable while exercising. Your phone won't be a drag when you exercise.The reflective strip on the bag will make it safer for you to exercise in the dark. Your logo can be printed on the center or on right side! 8?L x 4?W