Y3 Boxing Trainers in Navy. The statement silhouette from Y3 is back this season in a range of different colour styles and fabrics. This slimline trainer with a lace-up fastening features fleck laces and mesh panels with leather overlays. The statement three stripes in yellow and white add a vibrant statement look, which is also seen through the bright red patent heel panel. Branding is boasted to the upper and to the side.