"That was really the only pair in your size?" They do look awfully tight, and while there's nothing inherently wrong with that, yeah. Probably not great for flexibility.

"Could always try to pick up sewing. I've been thinking about that. Still isn't easy when most things here aren't long or wide enough but for you, maybe it wouldn't be bad. You could cut up a skirt and sew it closed into legs." Cool, swooshy legs with fun fabrics, too. Honestly, he might have to try that if he ever sees fabric he likes. Surely he won't cut himself in the process and stab himself with the needle repeatedly, sew himself to the clothing, and then get tangled in the string trying to set the project down.