Some people don’t want to wear a gender at all. Any gender that’s put on them ends up in a heap on the floor by the sofa or left on a peg in the hall.
Some people who feel moved (or compelled) to wear a gender
are happy with the one their parents picked for them, or a uniform one they got at school,
or they pick one from a catalogue, smart, ready-made.
Some people read about gender pattern-making, and carefully measure, cut, pin, stitch, adjust to fit.
Some of us pick up second hand parts of genders from swaps or shops,
trim the extra off and re-hem; layer this shiny one over this smooth one; let the holes in this one fray; use the bits of this for patchwork; unravel and re-knit.