TrustedReviews have looked at the Sennheiser PXC 450 NoiseGard 2.0 headphones

They've certainly got a quality feel to them. As soon as you open up the box with its posh, magnetised flap, you know that you've purchased some serious gear. The headband and circumaural earcups (the kind that sit over and around your ears) are wrapped in luxurious soft leather and are beautifully softly padded. The chunky hinges and headband, underneath their luxurious cladding, are constructed of hard-wearing steel and aluminium.

Sennheiser PXC 450 NoiseGard 2.0 Headphones Review