This is for an Adult Small Union suit/Long Johns. 

This Small Union suit measures:
14 inches across the chest
26 inches from the back neckline to the crotch

These are now made with 100% ring-spun cotton.  
These are not sewn with cotton thread. 
Cut really big to allow for shrinkage on first wash. 
7 button front, 1 button rear flap 
(can be sewn closed to eliminate drafts).

After dyeing, I wash in hot water 3 times and then into the dryer so they will not shrink anymore.