TDK's Deep Woods Box is constructed of .100 Aluminum. It's struct riveted and TIG welded together and has a cargo rack built in for strapping down your gear. It also has an adjustable Vent Door on the back side of box to control the air flow to keep the dogs cool or warm. The box is set up to pin on to the Snow Kit.
The Deep Woods Box is 38" long x 24" deep x 31" tall, weighs 55lbs, and holds 2-4 dogs.