Great ideal for business,conference,office,meeting,working,restaurant,school,test field,business travel and many more!The Waistband is made of Nylon fabric, soft,durable,waterproof and sweatproof.A fixed belt can hold the bottle tightly when you are in motion.Can place cell phones,wallets,credit cards,keys and more.Professional reflective strip takes care for your safety while running or walking in the dark!And the bag has also a earphones hole,you can enjoy pleasant and relaxed workout experience.Always having your phone with you while working out.Showing your brand wherever you go!