Taking a half upcycled, half organic cotton yarn from the same mill we get our 100% upcycled cotton blend we have had to make this fabric ourselves from scratch with a knitter in South Carolina. Coming in a natural untreated, a bleached white, and fabric dyed black we have made these 100% in the USA from start to finish and all the sewing is done in North Carolina. With a weight of 5.9 ounces in weight and pre-washed and dried these long sleeves and tees are built for comfort. Adding a USA made 1930s shuttle loom label is the final touch in making these a new staple of the brand. YARN STAINING: A byproduct of the recycling process is that some non-bleachable materials may become part of the yarn. This leaves a small mark on the natural and bleached white fabrics. These marks are not visible once worn. Please embrace it as part of these unique t-shirts. Fit: These are standard sized tees bordering on the large side. As these are pre-washed and dried there will be minimal shrinkage.