Most are polyester-based: plain polyester or polyester blended with spandex. Some tank styles use a nylon/elastane rib-knit with a polyester/spandex lining.
They most commonly appear as sleeveless tanks or short-sleeve tees, typically with crew or round necklines.
Fits range from slim to regular/standard, and lengths usually hit at the waist or fall just below the waist.
Most items list machine wash and tumble dry as the care instructions.
They advertise quick-dry and moisture-wicking performance; several styles also note UV protection for outdoor use.
They’re described as suitable for sports and outdoor activities, helping keep kids cool and dry; several styles also offer UV protection.