Material very thin around hinges. It?ll definitely be nice to wear them on a long-haul flight (not anytime soon though). just got it today, it took me about 30 minutes to set up with the help of power tool, pretty straightforward. Ich kann nur eine Vorab-Rezension verfassen, und werde später noch ein paar Anmerkungen nachreichen. Quality is quality and I want these to last awhile. So, the product on the first glance looks good. But makes me wonder if this is the packaging it is supposed to be in or if something else is actually supposed to be with it. This is a great shaver. They fit in my hoodie pocket. I believe it will last approx 4 hours on the lowest setting.