This SmartWool Merino 250 black t-shirt makes a great base layer for hiking or any outdoor activity. It is 87% wool, 13% nylon. In person it is in excellent condition and jet black. The pics are lighter and show ever spect of fuzz, but it isn't visible in person. The SmartWool website says: Our line of Classic All-Season Base Layers apparel is full of ultra comfortable layers made for life on the move. We made our Classic All-Season our most versatile and durable 150g fabric yet by wrapping super-fine Merino fibers around a nylon core—helping to keep your new favorite shirt around from crag to camp to canyon with Merino wool still next to skin.