I like the 50/50 merino blend Core4Element boxers. Black Ovis sells them as the Black Ovis brand now. I found them to be plenty long and they don't ride up, bunch, or stretch out. They also don't hold odor despite being a blended merino material. Lastly, I really like the price and found them to be the best bang for the buck. The only warning I would give is that if you have big thighs, they might be too tight since they don't stretch that much, but for a skinny guy like me, they're perfect for my needs.