Jackets and fleece pieces are commonly made from polyester (including polyester fleece), while thermal pants often use cotton. Some thermals use stretch blends — for example, the waffle-thermal hoodies are listed as 95% polyester/5% spandex.

Listings commonly show high-pile fleece or micro-fleece linings. Some jackets are fully lined, and a number note fleece that extends into the hood for extra warmth.

Product listings repeatedly specify machine wash and tumble dry for many toddler jackets, pants, and hoodies.

The waffle-thermal toddler hoodies are listed as 95% polyester and 5% spandex.

The listings use three warmth labels: Heavyweight (used for many puffer and fleece-lined winter jackets), Midweight (for thermal pants), and Year Round (for some fleece jackets and thermal hoodies).

Outer jackets commonly use full-length front zippers; thermal hoodies are generally pullovers with attached hoods. Some jackets also feature lined or high-pile fleece hoods for extra protection.

Jackets list flap pockets or front pockets (including slit or snap-front styles), while thermal hoodies typically have a kangaroo pocket.

Listings commonly advertise water-resistant shells or fabric for light rain or snow, and many highlight fleece or high-pile fleece linings and fleece-lined hoods for added warmth and protection.

A reversible fleece jacket provides two looks in one (typically a high-pile fleece side and a patterned or solid reverse), often includes high-pile fleece for warmth, and in some listings features an attached hood, zip front, and pockets on both sides.