Most red Superman tees are 100% cotton. The toddler 3-piece set uses polyester for the vest and cotton for the shirt and pants.
Most items list simple machine care: machine wash and tumble dry. Follow any garment-specific care labels for recommended temperatures or settings.
Men's tees are described as a regular fit with a classic crew (round) neckline and a pullover style.
The 3-piece Superman sets are aimed at toddlers and boys — product listings note toddler sizing and availability in boys' sizes.
Adult red Superman tees are listed as short-sleeve pullover styles. Lengths are described as around the waist to slightly below the waist — check individual listings for exact measurements.