Stormtrooper Costume for Children

The Medium has a 33 inch chest, 24 inch torso, and 23 inch inseam. Compare your child's measurements to the size chart to be sure it's the right fit.
(AI Generated Answer)

The jumpsuit is 100% polyester, which is generally machine washable on a gentle cycle in cold water, but the attached foam shoe covers are polyurethane foam, and foam should be kept out of the washing machine since it can break down with agitation and heat. For the best results, spot clean the foam pieces by hand and let the jumpsuit air dry. The plastic mask can be wiped down with a damp cloth.
(AI Generated Answer)

At 46.5" tall, your son's height falls between our Small and Medium. The Small has a 22" torso and 21" inseam, while the Medium steps up to a 24" torso and 23" inseam. Since he's closer to the top of the Small range in height, the Medium could give him a more comfortable fit with room to move, and we generally suggest sizing up when measurements fall between two sizes. Comparing his chest measurement to our chart (Small is 32", Medium is 33") will help you land on the right call.
(AI Generated Answer)

For a 4-year-old in a size 5, the X-Small is likely your best starting point, with a 30" chest, 20" torso, and 20" inseam. Since costume sizes don't always match clothing sizes, I'd recommend measuring your child's chest, torso, and inseam and comparing them to our size chart to make sure you land on the right fit.
(AI Generated Answer)

Our size chart doesn't list age or clothing size ranges, just body measurements. For the 2XL, the chest is 37", the torso is 34", and the inseam is 31". Comparing those numbers to your child's measurements is the surest way to confirm the right fit.
(AI Generated Answer)

An XL would be like a size 14. There is also a size chart on the page that I recommend checking since everyone is different, especially with jumpsuits like this the torso is important!

The XS has a 30" chest, 20" torso, and 20" inseam, so comparing those measurements to your child is the surest way to confirm the fit. Your guess of ages 3 to 4 is a reasonable starting point, but since kids grow at different rates, matching their actual measurements to those numbers will tell you more than an age range alone.
(AI Generated Answer)