While most companies in the cycling industry feel the need to put a water bottle on the roster, many choose an inexpensive and lackluster product. Sad but true. Castelli choose the exact opposite. This 18.6oz bottle is constructed of high quality plastic which will hold up to abuse from being handled during sport and from the heat of the dishwasher. The cap features a soft rubber bite valve (in red) that has 3 incremental positions to adjust water flow. The wide opening makes adding supplements and cleaning a snap. White graphics with the Red Scorpion logo is simple and classy.