For the needs of outdoor sports, traveling and daily trip, this waist bag combines many practical features as a one. It is ultra-thin, convenient and has a anti-theft belt clip. On one side of the bag, it covers a plastic waterproof layer which can proof water effectively, other side is grid designed, not waterproof but is air-permeable. This combination of waterproof and air-permeable function makes it very suitable to carry mobile phone, money Passport and more. It's an ideal choice for your travel and daily.