I am 6 feet tall and need to wear shirt stays for a uniform. I consider 6 feet a somewhat average height, but even with the straps adjusted to the longest length, they are not long enough. If I manage to attach them well enough to get out the door without them snapping, they have not lasted through 5 minutes of light drill. I bought these, and a different pair in black. After only wearing this set twice, they are broken. The plastic tabs are deformed to the point that even with no tension, they can no longer grip the shirt. Also, they are so tight that the metal part of one broke. I would not recommend it, but this seems to be the only option for white shirt stays.