Running Hydration Vest Backpack With Water Bladder Daypack                                                            
                                                            
                                                    
                                                                1.The trail running backpack vest is designed with a double hydrating solution. 
2.Suitable for 2 450ml kettles and 1.5L water bags. 
3.In the process of exercise, replenish water at any time for long endurance. Enjoy sports happily!                                                            
 
                         
                                         
                                         
                                         
                                         
                                        