To fit ... I'm 1,90m tall at 125kg. I have the shirts ordered in 3XL and they fit properly. Occasional Maurerekolleté stooping comes probably from sexual flywheel in my midsection as the short cut to.
The quality ... is significantly better than the functional shirts from discounters both the material and the editing. The colors are strong and do not wash out.
Conclusion ... Shipping and packaging were okay. From me a strong buy recommendation. The shirts will accompany me when deployed in hot countries, especially as they can be quickly washed by hand, do not take up much space in your suitcase and dry quickly. However Flexing / Welding I prefer always a work jacket over it because - there are plastic fibers and flying sparks holds cotton significantly more.