This is a good product for keeping your baby warm but can be a little tricky to get on. You also really need a swim nappy underneath as there is a gap at the back.
This is a great product for babies who feel the cold. Without it, my little one shivers as soon as he hits the water. I am just about to order my third baby snug. Compared to other similar products on the market this is by far the most comfortable with the soft cuffs around arms and legs. The first type I bought chaffed around the top of his arms and legs - I returned it to the shop for a refund.
Yes it needs a swim nappy underneath but this is no problem. The only slight problem I've had is the velcro snagging the neoprene - oh and others taking a liking to it and stealing it from the changing room not once but twice when my in-laws and husband left it behind!!