These assorted pattern jacquard adjustable collars are by Guardian Gear.  Jacquard weave is a fabric where the design is incorporated into the weave instead of being printed or dyed on.
Sante Fe has a purple/pink base with aqua/purple design, underside same pattern.
Red Mob has a colorful print on red base, underside black.
Electric gives the look of hot electric, blue collar with pink and black electric waves running down, underside black.
Jester a cheerful, colorful collar. Purple collar with blue and neon green design, underside same pattern.
Day-Glo a colorful and neon design, turquoise blue with black, neon pink and neon green design, underside black.
Tan Mohave has a colorful print on tan base with brown, black, red, yellow and aqua design, underside black.
Varsity is colorful blue, purple and aqua stripped pattern, underside same.
Matching leads available. Made in USA