Very light, you can forget that you've got it on. Vents are nice, ear pads comfy. No sizing issues, but I've got short hair, and can get a beanie in underneath without it being tight. Dig the skulls in the camo design which I didn't even notice in the pics of these online. Something to be aware of with these, the chin strap doesn't get along well with the velcro on my coat collar and has frayed a bit, so try to keep your straps clear of the hook side of any velcro on your gear.