Instruct: Classify the given review into positive or negative sentiment.
Query: not for skinny kids

i thought these water floaties would be better than the plastic floaties that are out there but these don't seem to do the job in keeping our son afloat. maybe it's because he's quite small (18 months and 19+ lbs.). i guess we can try again when he's older but from the reviews i had read, i thought these would be good for smaller kids. although they are easy to blow up and deflate, my son's arms seem to disappear within them and we can't seem to get them on tight enough to stay.