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So I got an Under armor one for free, this one to be exact. http://www.underarmour.com/shop/us/en/mens/accessories/protective-gear/pid1223502?iid=125|ArmourBite|v4.0-Endeca-Department-Page---113|dp_hero_01||MWBG|armourbite|P|I|1223502|
My question is how many people use them when you ski and do you think they are necessary? Also I was told by me dentist not to long ago I should definitely wear one if I am doing DH biking due to their help with concussions. So basically what are all your opinions on them?