What time is it? Adventure Time! This offficially licensed t-shirt features Finn and Jake from the animated television series Adventure Time with Finn & Jake. This blue, standard fit shirt is made from 100% cotton. Be sure to check out our Size Chart to get an idea of the average size and dimensions of this Adventure Time with Fin & Jake tshirt style. Check back often for some of our new Adventure Time with Finn & Jake clothing and other Adventure Time with Finn & Jake Merchandise at great prices only at AnimationShops.com.