So I ordered 6 k87 shirts in one color and 3 more in whats called blue heather . The first 6 were of wonderful 100% cotton, well made and thick. The other 3 felt thinner and looked cheaper. I checked the tag and sure enough it was only 60% cotton. I get these for work and I trust Carhartt for their durability, but these fall far from being what Im used to from this company.