I havent orderd anything from this company but I have friends who have and they say the equipment is realy good. It is important to get a proper harness for pulling as other harnesses not intended for pulling put pressure on all the wrong spots which could cause you to have a lame dog due to injury. www.blackicedogsledding.com Another great one is www.alaskandream.org Charlotte, the harness you suggested is not designed for any serious weights. For serious weights I recommend a harness with a Y chest, not a band like that one has.