If you want a new idea, read an old book. BARBARIAN BROTHERS, Gold Gym Venice Beach circa 1984. Honestly, there is nothing functional about them. It is simply cool to look like a lumberjack when lifting. The reality is, those fu-fu Lulu Lemon stretchy pants or tees are much more conducive to a great workout. I feel you have to turn in your man card to wear them. But, the fact is, the flannel is nothing more than bro-fashion. That said, it is kinda cool if you go full Barbarian and include construction boots.