Andy Irons gives the Billabong Knock Out Stealth Boardshort his stamp of approval. What more do you need? Well, Billabong also threw in some sick performance technologies like Zero Gravity Stretch technology, which makes the fabric fit like a second skin, plus PX Infinite Seam Technology that eliminates stitched seams for maximum flexibility and comfort. Other details include Quad X Stretch fabric for flexibility, H2 Repel for a water-repellent coating to eliminate friction and an all-over em…
