Briefing TravisMathew The briefing is 100% nylon, so it will be worn as a rain cap 3-4 times on rainy days and may have some minor scuffs. Of course, you can wear it on days other than rainy days. TravisMathew is in excellent condition, with hardly any memory of being worn. Please refrain from purchasing if you are overly concerned, as this is a used item. Thank you.