Went for size M (I’m waist 33/34) which is my usual sizing for all other shorts with Adidas (such as firebird etc) but this shirt felt a little snugger than those so had to size up to L which was roomier but definitely a baggier look and feel to it. Quality wise it’s great and love how lightweight it is and zipped side pockets and another pocket at back is a bonus (this one is not zipped however) All in all, recommended!