So you're planning on dressing up like Santa Claus this Christmas. Make it easy on yourself and go simple with our Santa costume t-shirt. It's all you really need, you will love wearing this classic t-shirt to all your Holiday parties and gatherings! This red, standard fit adult shirt is made 100% cotton. Be sure to check out our Size Chart to get an idea of the average size and dimensions of this Santa Claus Costume t-shirt style.