7" inseam, every size
Long enough for the squat, short enough for the run. The middle answer, properly drafted.

180 gsm technical jersey with a built-in boxer-brief liner. 7" inseam fixed across all sizes, 4-way stretch, two slash pockets and a back pocket, 4 cm elastic waistband with drawcord. The pair you actually pack for two weeks instead of three.
Every choice tested against a cheaper one. The cheaper one lost.
Long enough for the squat, short enough for the run. The middle answer, properly drafted.
Built-in liner. No retreat at the hip, no extra layer required.
High-poly with spandex recovery. Dries before the second set.
Two slash pockets, one back pocket, flat-knit waistband with drawcord.
Athletic. Between sizes — take the smaller.