Roman; Yes I wore it when it was hot at the start of the season (oct 1 here in Arkansas) and yes it was hot in the suit even with just a tee shirt under it untill my body temp leveled out sitting up in my stand, then it wasn't too awfully bad. They say that they are larger than you think but I've found that isn't really true. I have 2 large suits and one extra large for cold weather so I can put more clothes on under it. I'm 5'9" and weight 160 if that does you any good. They sure seem to work like a champ cause it's a very rare occation that I get winded---but I hunt out of a tree lounge too. The tree I've been useing lately isn't that tall though and I've been about 20 feet up and having loads of deer walking under me so I think the suits have alot to do with it. And I've been useing one of the suit since Oct 1 and still haven't put it in the dryer to regenerate it, just hung it out on the line, and it seems to work great. The extra large is good for wearing warmer clothes under it for sure cause then you have lots more arm and shoulder room to draw your bow. The ones I have have charcole hoods attached too and that is real nice for the loads of scent that comes out of the top of a guys head. Anyway, for the price I'd get one for warm weather and a larger one for cold weather.... Have a great bow season!!!!