Sorry about not responding faster. I did find the 4care ones were a much smaller fit (they also shrink too after washing/drying). Personally I like dealing with the folks at Preventawear.com, less shrinkage and there is a bit more of a stretch if the fit isn't right. I live in the southern US and these are a lot lighter weight too. One thing with Preventawear, they will add more buttons on the crotch area without charging (I had them do 4 buttons instead of 2). I think I will probably have them do three the next time, I think it would be just the right amount. They can also make adjustments without issue like turning them into v-necks or what have you, you just make the note in the comments in ordering. I recently ordered their thermal long sleeve onesies, I ordered a large, but it runs a little larger. You could always invest in a cloth measuring tape and email either Gary at XP Medical or the folks at Preventawear, both are very nice and easy to deal with.