- Celine's new Arc de Triomphe loafers are a super popular style. The simple design and the Arc de Triomphe buckle decoration on the toe make the overall look very eye-catching and easy to match. It's perfect, and it's very comfortable on the feet. Feeling great! Upper: cowhide, lining: sheepskin, sole: genuine leather outsole, size: 35-39 (40 customized, non-refundable),