Lid Boulder Duel-top

Cap for "Boulder" style bottles that will also fit "Summit", "Boss", and "Perks", as well as children's bottles "Scouts" and "Frosts", offering you added value and versatility. If a date from 2014 or earlier is indicated at the bottom of your bottle, the caps may not fit. If you need this cap as a replacement for a Boulder cap, please check the photo to see if it looks like your current cap. If you're not sure it's the right cap for your bottle, please click on contact us and we will be very happy to help you. The cap measures 5 cm in height and 7 cm in diameter. The cap and strap are sold as one piece and are sold as a unit. The first time you use this cap, make sure to screw it on tightly so that it forms a watertight seal.