Boardshorts are a style of men's and, recently, women's swimwear that have enlarged been associated with such aquatic sports as surfing and wakeboarding but have grown in popularity outside of these sports in recent years. The name of "boardshorts" likely originates from their affiliation with amphibian sports that use a board, such as surfing. They are sometimes called "boardies" in slang, especially in Australia.
Many boardshorts designs also utilize a light, net-like material stitched to the inside of the shorts that is designed to be a substitute for underwear. The majority Board Shorts of boardshorts wearers prefer to not have this aspect of the boardshorts present, so they remove it for added comfort and mobility. Some wearers prefer to wear boxers or other undergarments under the boardshorts.