The majority of the videos that I’ve seen about the new sleek don’t include how the stroller folds. Or if the two seats can be interchanged. Will there be a handbrake? Will the seats be able to fold in half? The city select lux is a good functional stroller but is heavy and a little awkward. The sleek looks like it would be a good stroller, light and agile but it’s missing lots of key features if it’s going head to head with strollers like the lux or the vista.