I I've shirt for summer, I can wear instead jacket. Actually, this shirt would please me if ... the specified size are correct. My Size - 170/70 kg. Shirt or shirt I always ordered in S size. Unfortunately, time does not fit, although I ordered the size that is specified in the Great Table. The conversion process was free and easy. Customer service was very informative and friendly. Unfortunately, size M is still too small. For the sleeves are about 10 cm long. The first negative experience with incorrect Great details at Amazon.