Im a 5'3 guy, with a bit of a slender built- this is perfect!! I love it. Its my first STP, and its great. Im a smaller guy so i made sure to get one that was on the smaller side. Easy to adjust, and the cup is decently big- i had no spillage at all despite it being my first time using an STP- the material is soft and flexible, so you can fold it if you want to just pack. Plus the colors are pretty realistic- My only complaint is i had to download an app just to track the package, but the product doesn't show up as Axolom- it shows up as UmiUmi so i thought i wasnt even getting tracking updates.