Oops! I meant that I decided on the d'lite model for the extra shoulder room. From Burley's website: Bowed-out sides for increased interior width/shoulder room. From all my research, I believe this model is the roomiest Burley has for shoulder room. It might, however, be narrower at the seat than the Cub. It doesn't look like the specs on their website reflect the bowed-out sides, but—whether it does or does not—I've already purchased the d'lite.