Slate’s Explainer has the skinny on the fashion ins and outs of buying a good one that reps your clan, creed or splinter group. See the video.
The only time I was able to ever wear one was while actually skiing…while it was below zero. I even had (briefly) a neoprene model that worked rather well at 30 below but felt slimy inside after a few runs. (The skis wouldn’t work well anyway since it was too cold to create the micro-thin layer of melt water that you actually glide on). So, in a way, I’ve gotta hand it to these wild ‘n’ crazy guys with their AK-47s and a desire for anonymity/clan identity/scary-looking-motherf’erness. That is badass when the average high for July and August is 91 F. (But the humidity is low, my friend).