From their site: By combining the same high performance technology and comfort with contemporary equestrian-inspired designs, we have created the Ariat Casual Collection.

MULES COLLECTION:
Designed with stability and comfort technology, Ariat Mules offer enhanced support in classic styles for everyday wear.

All Mule shoes feature:
Whether in the saddle or on the ground, products featuring our ATS Technology will dramatically reduce fatigue and stress in the feet, lower legs, and back. An exclusive gel-cushion insole conforms to your foot, while a composite fiber forked shank provides three times the stability of a steel shank. Additionally, our outsole is flexible and longwearing.

Last: Semi curved