Features:  AONIJIE Foldable Soft Plasticity Bags Flask TPU Squeeze Outdoor Sports Running Water Bottle  Ideal for outdoor sports like bodybuilding、 playing basketball etc、 also a nicehoice for picnic、 party and so on. Three models to meet the different needs of water Foldable、easy to carry   Specifications: Brand:AONIJIE Material:Thermoplastic Urethane(TPU) Color:Blue Capacity:5fl oz(150ml);8fl oz(250ml)17fl oz(500ml)   Package Included: 1x soft flask