The latest release from Z-Tactical is the Z029 Bowman Evo III. This headset comes with a new double side design which means you can wear it on left or right side, and leaves the other side free for environmental observation.
The nylon straps over the head are fully adjustable, with one behind the head, one across the forehead and one band over the head. The result is a secure but flat-packed set of straps that can be worn under a helmet. Of course, you can just throw it over your head as is for that spec ops / mercenary look.
The microphone sits on a highly repositionable boom rod which means you can adjust it to your face very quickly or tuck it away when not use.
Note that this is literally just the headset; this works in conjunction with a Z Tactical PTT button module (not included) and a radio (not included) to form a functioning comms setup. Of course it does not account that your teammates will also need one otherwise you will just end up with talking to yourself.
There are a variety of different models and colors around the website and with PTT modules you have to make sure you pick the right plug type for the radio you intend to use. That said, do make sure you whip around the site and are sure you have found the right equipment to suit your tastes and needs.