Inseam is the seam from crotch to hem on the inside of the leg. It is the number that decides whether shorts stop above the knee, at it, or below. Waist size has nothing to do with it.
What each length does
Three and four inches is running territory. Nine cards in the catalogue sit at 3 inches, five at 4. They end high on the thigh, they have a mesh liner built in, and they exist so nothing rubs at mile six. Five and six inches is the same idea with a little more coverage.
Seven inches is the workhorse: 17 cards, more than any other length. It lands mid-thigh on most men and just above the knee on shorter legs. Nine inches, 12 cards, reaches the top of the kneecap. Eleven inches, another 12 cards, sits at or just below the knee and is where most of the golf shorts live.
Longer legs need a longer number, not a bigger waist
A common mistake is buying up a waist size to get more length. The chart shows why that fails: on most of these listings the inseam is flat, the same 11 inches on size 30 and on size 42. Only a handful of styles grow the leg with the waist, and even then it is a tenth of an inch per size.
Where the vendor offers 7", 9" and 11" behind a single listing, the choice is a dropdown at checkout rather than a separate product. Our page for those styles lists all three lengths.
Above 11 inches you are looking at pants
The catalogue jumps from 12 inches straight to 17, and everything from 21 inches up is a legging, a jogger or a pair of pants. Twenty-seven to 29 inches covers most of the full length women’s bottoms here, with 28 the single most common inseam in that group.
