Sometimes you want a zippy, and sometimes you want a two-piece PJ set! Although sizes are different, fit is comparable imo. (They fit our pretty-average-sized kiddo well from about 12m to about 24m) Jungle Safari was a limited run and is no longer available. Jungle safari is in good/very good used condition as we only wore a few times and always washed on gentle and hang dried. We were second owners on the unicorn zippy so that shows more wear (still good used condition -- we're talking minor piling not stains or anything)