Booster sets are available in both StayDry and Organic packs for your Sprout Change System. All of the parts are truly ONE-SIZE. No need to buy small, medium and large diapers, (or six or more sizes of disposables!) Sprout Change is completely, and totally one-size. Two great options for SoftSleeves StayDry... Buttery-soft microfleece keeps baby ultra dry and fresh. Organic... Organic Cotton Fleece SoftSleeve keeps baby covered in only natural fibers. Includes: 3 Booster Sets, perfect for 3 diaper changes... 3 SoftSleeves 3 Insides