Breast Cancer Awareness Cap Pink Ribbon Womens Hat and BCA Bumper Sticker Pink Ribbon solid pink cap and Bumper Sticker by Buy Caps and Hats. Air mesh pink fabric that is cooler and great for warm, humid conditions such as for chefs, in the kitchen, at the beach, BCA walks and marathons. Great looking Leather bill. Embroidered pink ribbons. Adjustable hook and loop velcro strap to fit many women.