Common materials include 100% cotton and 100% organic cotton; cotton/poly blends (50/50); 100% polyester; viscose/spandex blends (95/5); and cotton blended with recycled polyester (60/40).
Sizes are listed as boys, kids, and boys' husky, typically ranging from X‑Small through X‑Large. Common fit labels include classic fit, athletic fit, and casual fit.
Most list machine washing and tumble drying; some specify machine wash cold with tumble dry low, while others recommend line drying or laying flat to dry.
Fabric weight ranges from lightweight to midweight and year‑round types. Stretch varies from no stretch to high stretch, with some styles offering 4‑way stretch.
Some listings note organic cotton with GOTS certification and OEKO‑TEX STANDARD 100 certification, and a few use recycled polyester blends.