T-Shirt for a bachelor party, birthday, etc. Are you planning a bachelor party? Then this would be perfect for the groom or bride! And the rest of the party should have one with sidekick on it! They are available in different T-shirts, sweatshirts, hoodies, etc. search sidekick on nerdshop.dk The zip-up hoodie is a modern and stylish hoodie that adds a splash of color to any outfit. It has a zip at the front and a classic fit and is made from soft cotton material for a relaxed and laid-back look. The fabric is composed of 80% ring-spun cotton and 20% polyester, with a fabric weight of 280gsm.