Kid's Sundress (Dresses)

Airflow is the design brief. Woven cotton, a loose body that does not touch the skin at the ribs, and either narrow straps or an open shoulder. Every choice on a sundress exists to let heat off a child rather than to hold a shape.

Names on the label tell you what you are getting. Lawn and voile are fine, smooth cottons that go slightly sheer, so a pale one needs a lining or an underlayer. Seersucker is woven with alternating tight and slack threads, which puckers the surface into ridges and holds the cloth a fraction off damp skin. That pucker also means it never needs ironing, which is the second reason it survives on the shelf. Polyester versions look identical on a screen and trap heat against the body, which defeats the purpose.

Knit play dresses stretch, cling when damp and take rougher treatment. Occasion dresses are lined and structured for indoor events. Sweater dresses belong to the opposite half of the year. Among these, the sundress is the one built for direct heat and the one that gives the least protection from sun.

Beach holidays, afternoons above 80 degrees and children who overheat are the clear cases. Air-conditioned buildings are not, since bare shoulders in cold air mean a cardigan carried all day. Long sun exposure needs a cover-up over the top, because thin cotton passes more ultraviolet light than it looks like it does, especially once it is wet.

Hold a pale dress up to a window: if you can see your hand through it, plan on a lining or a slip. Shoulder ties beat sewn straps for a growing child, since retying gives you an inch of length twice a season. Wash cold and hang to dry, and keep seersucker out of the dryer entirely so the pucker that makes it work stays in the cloth.