DS is 18 next Summer. I'd like to buy him a few nice bits of clothes for Christmas. He has a lot of Nike tshirts but I thought I'd buy him a few others that he could wear. I have no idea what brands to get him. He isn't overly trendy and studies a lot but he does care about what he wears (I think). What brands are teens wearing nowadays that aren't classed as 'chavy' or untrendy please?