- Celine Celine's new spring and summer canvas strap slippers. This season Celine has made me fall in love with them again. It is a super popular slipper. One of the recent highlights. The simple design with buckles as an embellishment makes the overall vision particularly attractive and eye-catching. Good match! Upper: cowhide canvas, lining: cowhide, sole: original multi-layer combination outsole, size: 35-39 (40, 41, 42 customized, non-refundable),