Details Mountain Equipment Flash Bobble Beanie The Flash Bobble Beanie is a warm crochet knit hat with a recycled microfleece headband for extra warmth and comfort on those high friction days on the gritstone. Crochet knit beanie (50% wool, 50% acrylic) 100% recycled Repreve® polyester internal microfleece headband for additional warmth and comfort Specifications Flash Bobble Beanie