Thule Sleek Adapter Kit

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Thule Sleek Adapter Kit for sibling seat, bassinet, or car seat adapter

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)