The Bontrager Hollow Cage is a perfect basic cage for leisure riding, or for something a little more secure, try the Elite Custom Race or Bontrager RL Cage. The Bontrager Sideswipe RL is a good solution for smaller frames where bottle access is restricted.
The Lezyne Road Drive Alloy is a metal cage that can be bent back in to shape over time, so very robust, and has a slot on the side to neatly hold the Lezyne Road Drive pump.
If only the best and lightest will do, go for the fancy carbon Bontrager RXL. Just make sure you fill the bottle will special lightweight water.
Choose a bottle size accordingly to how much water you’ll want to carry, but make sure there’s space in your frame for the bigger bottles. The Camelbak bottles are a more expensive option, but have a lovely tactile mouthpiece and secure shut off, a staff favourite and worth the investment if you’re doing a lot of cycling.
Unconditional Bontrager Guarantee - all Bontrager bottles and cages come with a 30-day trial period, if you don’t like it, return it for a no-quibble refund.