The fit is a bit tight but they will hopefully be just fine after a few washes.

Picked up the Adidas Tiro 24 Shorts recently for football practice. Super light and comfortable - the AEROREADY fabric actually keeps you dry even during intense drills. Fit is true to size with a good knee length, and the drawcord lets you dial in the waist. Quality feels premium for the price. Only downside is no pockets at all, which is standard for soccer shorts but worth noting if you need to carry stuff.