T-shirt for a bachelor party, birthday, etc. Are you going to have a bachelor party? Then this would be perfect for the groom or bride! And the rest of the party should have one that says sidekick on it! They are available in different T-shirts, sweatshirts, hoodies, etc. search sidekick on nerdshop.dk The hoodie is a simple and stylish classic hoodie, it is a must-have for any hoodie lover. The fabric is a blend of 80% ring-spun cotton and 20% polyester or 70% ring-spun cotton (depending on the color), 30% polyester, with a fabric weight of 280gsm.