hey
here is my honest opinion. neither is great for just laying something in. but, since the WIO is a trimmer design it MIGHT work? i've never tried it, but the snap in contours are kinda laid in with 2 snaps at the back.
isabella is still in her small fuzbomb, on the tightest snaps, but the fit is getting funky. so, i'm sending it to lori to either have additional snaps placed or having it all changed over to aplix.
i'd have to recommend the small, but i think it depends on how fast your babe grows. i know that the mediums were big on alexandra at the age of 2, she was about 22 lbs or so, they still fit her very well, one side on the tightest snaps and one side on the middle snaps. she is probably around 27- 28 lbs now, she will be three in aug. i don't expect isabella to be in the medium until she is at least 2. they were the exact same size at their 1 yr mark.
HTH

isabella is still in her small fuzbomb, on the tightest snaps, but the fit is getting funky. so, i'm sending it to lori to either have additional snaps placed or having it all changed over to aplix.
i'd have to recommend the small, but i think it depends on how fast your babe grows. i know that the mediums were big on alexandra at the age of 2, she was about 22 lbs or so, they still fit her very well, one side on the tightest snaps and one side on the middle snaps. she is probably around 27- 28 lbs now, she will be three in aug. i don't expect isabella to be in the medium until she is at least 2. they were the exact same size at their 1 yr mark.
HTH