Most Tails costumes are made from 100% polyester. Some adult inflatable suits use 100% nylon.
Inflatable Tails costumes use a battery-operated air fan and require four AA batteries. Listings typically note that the batteries are not included.
Jumpsuit-style outfits often include full-length or hidden front zippers for easy on/off, integrated or encased elastic waistbands for a secure fit, and ribbed cuffs and ankles for comfort and to keep the costume in place.
Listings commonly recommend Tails costumes for Halloween, costume parties, dance or themed parties, and general dress-up play.
Several listings state these are officially licensed Sonic costumes and note production by a costume company that makes licensed character apparel.