CAT Footwear Outline Dark Gull Grey Steel-toe, model P90802, ships free. This is a next generation industrial work boot. All the comfort and durability of Cat Work Boots at an ideal price. The new Caterpillar Outline Dark Gull Grey steel toe shoe is made with premium full grain leather. The CAT Outline is also equipped with electrical hazard protection and slip resistance, allowing you to be fully protected during your work day.