so,
i currently buy the titanium body suits, order with the plastic buckle option...they are back zip...
the buckle is attached with a loop of the very strong material, i just cut off the plastic buckle and then your left with the loops on each side...put a small lock through there and there isnt any way out of the suit.
they can and ive ordered custom sized and items not “stock” like a titanium suit with full length legs...no issues.
they are a disability/special needs place, and probably not abdl aware...
but, with thier suits (even the short legs) there is absolutely no way to access your diaper in really any way...
without being graphic, if you really really try you may be able to snake around and use a toilet, but not comfortably!
with the long legs there isnt even any chance of getting even close to your diaper area, they are designed to keep from being able to remove diapers, and they do exactly as advertised.
https://preventawear.com/
I dont have any affiliation with them other than a very satisfied customer...multiple orders!
So, bottom line, if you want a locking onesie that will not allow any access to your diaper area, contact them, order the titanium suit, with long legs and buckle option (you will give them your measurements).
i’ve tried custom from even a company i used to own (pajamas) even that wasnt perfect, these are strong, durable, the material around openings doesnt streach at all. and the way they are cut cannot get arms inside the suit in any way.
best part about them, they actually conceal the diaper a bit, wearing jeans and a t-shirt it’s not distinguishable from just wearing an undershirt...even the long leg ones don’t show...