Here is a lot of two knit collars in royal blue. Knit collars can be used for shirts, dresses, or even jackets.
The larger collar is in the original packaging that says "Hancock's T-Shirt Collar". The fabric content is 50/50 polyester & cotton, and the collar will fit all sizes. It measures 3.75 inches wide and 15.75 inches length.
The other collar is not in original package and I do not know the fabric content, but I am guessing that it is similar to the other collar. This collar measures 3 inches wide and 14 inches length.
Both of the collars are in perfect condition, from my smoke-free and pet-free home. They have been stored in a closet, away from sunlight, and in an air-conditioned home.