I had a hard time choosing between all Commando's turtleneck bodysuit options -- the ballet, prima, butter, mock neck, and neoprene. Ultimately I went with neoprene because I figured it would match the Commando neoprene skirts, pants, blazers, etc. that I already own. I wanted something relatively thick and substantial and not a thin, lingerie-like piece. Another reason is that I wear an XL in Commando and the ballet bodysuits are only available in one size. The neoprene was pretty tight on first try-on, and with 2-3 wears it hasn't stretched much. But it's a form-fitting bodysuit, so that's to be expected. The neck opening is nice and snug, which I can't say for my butter turtlenecks -- I have the cropped and the long one, and they're both a bit saggy. Ultimately, I will be keeping this piece, even though it's a bit tight and constrictive. But I'll probably look into the ballet or butter for something a bit more forgiving. Any recs from Commando would be appreciated!