The HD 681 EVO are decent-looking but plasticky headphones. They have a completely different ear cup design to the HD 681 and 668. They're still semi-open ear cups, but the vents are slightly hidden giving these headphones a more closed-back look. The headband strap is also a bit different but has the same fit and comfort level as the original HD 681. However, unlike the other Superlux headphones these come in two color schemes. An understated and glossy black finish and a more flashy white that will stand out but may not be for everyone. They're also a bit bulky and cumbersome to wear and use outdoors.