Yes they do, such as the crew neck t-shirt shown below. However, consumers should not assume every piece of Adidas apparel is made from 100% cotton: many are made from polyester, nylon, elastane and recycled polyester. Adidas make clothing with a combination of cotton and polyester, and sometimes use organic cotton rather than 'regular' cotton. The majority of Adidas apparel is made from a combination of cotton and polyester; typically 66% cotton and 33% polyester. Adidas apparel that is 100% cotton has different 'wash' instructions: some are suitable for any machine wash setting and others are only suitable for a 'delicate' machine wash of no more than 30°.