Long story short, we've modernized the board short to be streetwear ready. The Flex Pro Jersey Tulum Trunk is an innovative, tailored jogger-style trunk made of our most technically advanced Flex Pro fabric - combining super-soft cotton, with micro-denier spandex to create high density, high recovery fabric with 4-way stretch that won't lose its shape. They feature a contoured waistband with a drawstring and zip front closure for a more secure fit.