XLAB bottle cages are typically used on bicycles to hold water bottles or other beverage containers during cycling. Here are some features you might expect from a high-quality bottle cage:

1. Lightweight: Bottle cages are typically made from lightweight materials like plastic or carbon to minimize additional weight on the bike.
2. Durability: They should be able to withstand vibrations and shocks during cycling, as well as exposure to the elements like rain and mud.
3. Secure Grip: The bottle cage should hold the bottle securely to prevent it from falling out during bumpy rides.
4. Easy Access: It should be easy to insert and remove the bottle from the cage, even while cycling.
5. Mounting Options: Many bottle cages offer various mounting options to attach to different types of bike frames.
6. Style: Some individuals consider the aesthetic aspect and desire a bottle cage that complements their bike's appearance.
7. Price: The price may vary depending on the brand, material, and additional features.