This sustainable Classic Organic Crew Deep Black from Colorful Standard is made from 100% oeko-tex certified organic cotton. Countless of hours and customer feedback has gone into the development of products ensuring perfect fits. The long-lasting new look is achieved thanks to the well-thought-out choice of materials and the specifics of the production method. Pre-washed so no shrinkage surprises. Long-lasting environmentally friendly dye. Made in Portugal under the best conditions and they even donate 5% of revenue for a good cause. Safe for both the environment and your skin.