we always pack swim gear for our kids they take lessons every week since they were 3 months old but still feel comfortable in their gear ... the 2 yr old wears a innertube that is sewn into a shirt (swimways makes them) and the 3 yr old wears a float ... I do pack a mini bicycle pump from my mountian bike to inflate the innertube but all in all they take up no space and my 3 yr old wore her stuff in the pool ... the 2 yr old was exiled to that silly mickey ear but she liked it