I got the new headband strap for the tres. It's pretty great. No pressure on top of my head. It's made of two different types of (genuine) leather. Stiffer on top to keep the form and softer against the head. I like how the lower part is not porous like on some headstraps. It's easier to clean and does not absorb all the dirt from ones head.
This is different type of strap on another headphone. It sucks in tandrum, grease and all that nasty stuff.
Attachement mechanism for the strap is simple. It just goes under that metal thing.
I've been listening to Tres more now. I allmost forgot how good these things are. Big soundstage and generally large sound is a nice change of pace after more intimate presentation on utopia. Price difference considered it's kind of nuts how much I like the Tres. I also got Monolith Liquid Platinum while ago. I think it does tame some of the edginess on Tres. Tube hybrids in general might be a good match for the Tres. Something like Schiit Vali for example.