Billabong R U Serious Boardshorts - Men's Yes, we're serious - this is a boardshort you definitely need in your collection. The Billabong R U Serious Boardshort features 100% recycled polyester Hydrostretch fabric, which is Billabong's go-to four-way stretch fabric. It's a combination of Platinum Quad X Stretch and H2 Repel water-repellent coating, giving you a boardshort that's perfect for play or performance. Other details include an all-over print, embroidered details and a 22" outseam. Imported.