I have been trying to find something cute and easy to carry my water bottle, gels, phone, keys, etc on long runs during the summer for a long time.Here's my progression:x Flipbelt: Kept riding up, had to adjust while running, very annoying.x Bike shorts with pockets: Kept getting pulled down by the weight; pockets usually small and don't have zippers.x Janji multipass: Worn over one shoulder, it was secure with the stabilizing strap, but felt unbalanced and annoying (looks cool though). On the waist like a fanny pack, bounced horribly and needed constant adjusting.x Salomon Adv Skin 5 for women: Straps to secure it at the front were confusing and annoying. Also the women's version had smaller and shallower pockets??? Why do we hate giving women pockets. Too expensive for how much I hated the design.Finally led me to this one! I'm size M (6/8) in most women's clothes and the Small vest was adjustable and fit perfect. Long straps means it should fit a wide range of sizes. Two easy straps across the chest, one zipper pocket big enough for a phone, two deep water bottle pockets, and two shallower pockets for gu and stuff. At half the price of Salomon. I LOVE it! It's comfortable to wear over just a sports bra without chafing, looks cute, doesn't bounce, zero complaints. I don't use the waterbottles these came with, instead I use the ones that are made for the flipbelt (which do annoyingly leak, but are otherwise secure in this vest even when empty).Hope it lasts!