The Thule Sleek stroller comes standard with one adapter kit. If you want to add another infant seat, bassinet, or car seat adapter to create a tandem stroller you will need a second adapter kit.
- Quick and easy mounting and dismounting
- Adapters can be kept on while folding stroller
- Enables duo configurations with Thule Sleek main seat, Thule Sleek Sibling Seat, Thule Sleek Bassinet and specific car seats (for car seat configurations additional car seat adapters are required)