Introducing the Filling Pieces FILLING PIECES Ace Suede Trainers. The Ace Suede Trainer From Filling Pieces Is A Contemporary Nod To The Iconic Tennis Shoe From Days Past In A Low-Top Version. A Signature Suede Trainer With A Timeless Retro Feel And Details That Embrace Its Roots In Sport And Leisure. It Features A Thick Outsole, Comfy Leather Lining, Perforated Toe Box, And Subtle Stitched Detailing. Sole Material: Rubber Material: Non-Leather. Colour: grey