Display your Bitcoin enthusiasm by wearing it for the world to see with the Goodspy Vintage Bitcoin Logo Unisex T-Shirt. Featuring a vintage-inspired Bitcoin logo, this Goodspy shirt comes in a wide range of colors. In fact, there are 18 different colors for you to choose from. The plain color t-shirts are 100% cotton. However, the heather gray shirt is 90% cotton and 10% polyester while the charcoal heather is 52% cotton and 48% polyester. The t-shirt comes in a flattering slim fit. But, you can always order a size up if you prefer something looser. Additionally, the t-shirt weights 145 grams, making it nice and light for any season. But you can also try the classic tee if you prefer something on the heavier side. The Vintage Bitcoin Logo t-shirt is suitable for both men and women and comes in sizes from S to 3XL.