This is a heavy, quality stitched coverall.  The weight of this is great for cooler days, but you will not want to wear this on a hot day as it will be like you are trapped in a sauna.  However, this is probably one of the downsides of the material being rough n' tough, so to speak, because it's thicker.  The other downside for me, is the sizing.  I'm 6'2" 180 lbs and I ordered a large tall.  In terms of width, I'm basically swimming in this coverall.  But it's a struggle to get in because it's just too short.