As the tougher twin of our classic Luka Short, The H.D. (Highly Durable) delivers the same impeccable fit but boasts enhanced durability to stand up to the most rigorous of regimes, from heavy lifting to high-impact training. If you want more structure and robustness, this short stands as your armor in every intense training session. Crafted for those who demand as much from their gear as they do from themselves, the HD offers the choice of 5" or 7" inseam and liner options. Push through with the Luka HD Short. NOTE: the optional built-in liner is not compression.