Short answer Izmi Breeze Carriers have a soft mesh body panel for extra air-flow. Apart from that, they're identical. Longer answer The Izmi Breeze Baby and Toddler carriers are made from soft cotton and have a super soft, polyester mesh panel, for extra ventilation and breathability to help keep your little one cool. The regular Izmi Baby and Toddler Carriers are made from soft cotton. Aside from that, there's no differences. Both the regular and Breeze carriers are suitable for all seasons. If you: - are in a hot climate - need a carrier for summer - are someone who 'runs hot' - or if you simply like the look of the soft mesh ...then we recommend the Breeze version.