Most Santa bellies are made from polyester or a polyester-and-foam construction.
Santa bellies are typically sold as one-size/adult items and are often labeled "one size fits most."
Padded bellies commonly include fully padded belly and chest shapes and an extra-wide (often black) elastic strap across the back for a secure fit.
Care instructions generally recommend hand washing in cold water, line drying, and fluffing the belly once it’s dry.
Santa bodysuits are available in standard women's sizes (for example XS, S) and in plus sizes such as 1X, 2X, and 3X.
Bodysuits typically fasten with a back zipper and a hook-and-loop closure at the halter collar; boot cuffs use wide elastic and belts include multiple sizing adjustments for a secure fit.
Santa bodysuits are described as a stretch velvet blend made of 92% polyester and 8% spandex.
Listings typically include the bodysuit plus a matching hat, boot covers or boot tops, and a belt; some descriptions also note faux fur boot cuffs.
Santa bellies are designed to be worn underneath a traditional Santa jacket and are secured with an elastic strap across the back.