Diamond Supply Co. has just given us a look at their Holiday 2009 Collection. The collection consist of many t-shirts, crewnecks, and hoodies. We really like the collection because of the simplicity, and we really love the Mohammad Ali inspired t-shirt. Most of the collection does include tees which isn’t something you would expect for a Holiday Collection, but they do have sweaters and crewnecks which look as good, if not, better then the t-shirts. The collection has just started to hit stores. More pictures available after the jump.