Our Grinder style includes a classic boat shoe look with our full grain leather uppers and functional 360° leather rawhide lacing. For additional comfort. This style includes a full length foam foot bed. Try out the Sebago Grinder this season! Enjoy a casual classic with the Grinder boat shoe from Sebago. Crisp stitch detail and classic 360 degree laces offer a handsome look while the flexible rubber sole gives you cushion and a smooth stride. Look as comfortable as you feel in Grinder.