My first two trailers were made completely of Kevlar a 2H BP (no dressing room) and a 2H BP DR slant that I kept for 9 years. It was 7’9" HT and 8’ wide. I loved it! It also had a rumbar floor and nothing could hurt this trailer. I hauled several warmbloods and Friesens in the trailer and they had plenty of room.
The brand was Thee Kit - a small private company and they probably made about 50 or so before they stopped making as the materials became too pricey. Note - they make tanks out of Kevlar…
I only sold mine because I needed a LQ trailer and I sold it to a girl that had an oxen named Bo that she rode in parades. He kept putting his horns through her other trailer and needed a stronger trailer. He also fit due to the size and his horns couldn’t penetrate the kevlar.
the trailer was cooler, lighter in weight, but stronger than steel trailers… the company switched to making boats and is doing quite well. The father who started this company worked for Sundowner, so he may have designed the trailer shown.