What a breathable jersey. I just finished a 200+ mile in this jersey and it was really a pleasure to ride in. It was a warm day but the mesh sides and back kept me well ventilated. It's an extremely light jersey that is well constructed. Usually on long hot climbs I unzip most jerseys but it's not necessary with this one being so breathable. It's cut longer in the back than most jerseys which makes the pockets feel lower than most. I've had the rear pockets packed full and while it did sag more than most jerseys it wasn't horrible or uncomfortable in fact it felt easier to reach back and grab something out of. The reason I knocked one star off was arms are a little tight. My arms aren't very muscular (6'1", 190) but in the white jersey there are these red cuffs that are quite tight.