Common materials include polyester/spandex blends, 100% cotton items, and cotton blends with rayon plus small percentages of spandex. Some listings simply list cotton and polyester without giving exact ratios.
Fabric weights reported include midweight thermal fabrics, lightweight fabrics for tees and tanks, and at least one listing described as a year‑round fabric construction.
Many base layers advertise moisture-wicking and quick-drying fabrics. Others reference branded moisture-control technologies, breathability, odor control, and built-in stretch for active use and layering.
Most listings specify machine wash care. Several also list tumble-dry instructions, while at least one item notes that drying instructions were not provided.
Stretch is typically provided by spandex in blends. Examples in the listings include 10% spandex with polyester, 4% spandex in a cotton-rayon blend, and small spandex blends such as 5% spandex with cotton.
Pack sizes range from single items up to multi-packs. Listings include 1‑count, 2‑pack, 3‑pack, 6‑pack and 10‑pack options.
Common comfort details include tagless or tag-free construction, lay-flat or finished crewnecks, and extended or stay-tucked lengths that help the layer remain in place under shirts.
