MARKETRON9.7 Inch Cross Body Bags, Waterproof Sling Bag with Quick Release Magnetic Buckle, Casual Shoulder Bag Chest Bag for School Cycling Hiking Work Travel - Black

Has all the features you'd want including a clever pocket for a bottle or umbrella but the problem is, once you put anything in that pocket it negates the majority of the other pockets. If only they removed the front portion of the bag so the elasticated pocket is exposed then it wouldn't be so bulky.