Just to continue finishing with the boots, they are a Vibram soled boot with a heavy duty cloth upper with two layers of felt inner boot, quite warm, very flexible and our sled are about six feet long, a composite plastic bottom tub with integrated molded runners on the bottom and the top part of the sled with a fabric covering with a zipper down the length of it so most of out gear goes inside and you can zip it shut and is self contained and then whatever bulky lighter items such as a rolled up sleeping bag are lashed on to the top, connected to us by two long rods or stays they are attached to the sleds and go forward and attach to our hips, the harness system is kind of a hip belt and kind of a hip belt with a shoulder strap system and this kind of distributes the load primarily on our hips but also a little bit of strain on your shoulders, but all in all not too bad, the sled we are pulling are about 200 pounds, and depending on the snow conditions it's really not as bad as you might imagine but it's a constant pull all day. And we're getting a really good work out all day. The hard part is trying to dress properly, there's no wind, we have to go down to our lightest layer so we don't over heat. Yesterday as we discovered that if it's blowing and cold, and we're traveling into the wind you have to put on everything and cover your face, wear heavy mittens and gloves try to stay protected from the bitter cold. But again we had a good day and we look forward to a good day tomorrow and we'll check in at camp four.