Billabong Fluid 2K Pro 21" Boardshorts. Core surf style meets modern innovation in Billabong's Spec 73 Collection Fluid 2K Pro Boardshorts. Featuring strategic panels with piping that enhance durability and movement, the fixed waist and 21" outseam deliver a secure, performance-driven fit. Crafted with partially recycled materials with added stretch for mobility and comfort in tough conditions. A concealed zip pocket keeps essentials secure. 21" outseam. 90% Recycled Polyester 10% Spandex. Machine wash. Imported.