About Pearl Izumi AmFIB Bib Tight: The AmFIB bib cycling tight provides excellent wind and water resistant protection, as well as thermal insulation throughout the toughest commute, reacreational ride, or race. Highly durable and breathable stretch AmFIB fabric on front of the tight and center panel provides long lasting protection. Plush elastic waist with contoured flat-lock seams provides a contour fit. This garment is featured with 8 inch ankle zippers with locking zipper tabs and reflective tape detailing. Reflective logo at legs and an internal key pocket makes this a great all around cycling tight. Sizing: S(29-31), M(32-34), L(35-37), XL(38-41), XXL(42-45).