The bag is very suitable for the inner bag of a backpack or wallet for convenient carry of mobile phone, card or passport.The bag can be used as change bags, card bags, running pockets for men and women. small size, large capacity.The wallet can be used as a running sports bag to store your mobile phone, keys and other items, and hide them behind the belt for clothing matching.The wallet is made of high-quality waterproof material, and it is durable. breathable, soft and comfortable.The wallet bag is very suitable for sports, travel, cycling, mountain climbing, hiking, shopping, etc. It is also very suitable for activities in large groups to prevent loss of items.