These tripping collars are heavy duty, soft leather, and just a great quality collar.
2 1/2" Tooled Breast Collar
Basket Stamped and Rough Out Breast Collar by Cactus Saddlery
Basket Stamped Breast Collar by Cactus Saddlery
Basket Weave Pulling Collar
Buckstitch Rough Out Tripping Collar