when it be on properly , this cover do not often leak , be a nice color , and fit snuggly . however , by 18-28 lb. , my son be all over velcro like vulture to a carcass and unless the cover be secure under a onesie , and sometimes even then , I will often find the cover and insert down in one pant leg . the velcro do not require a lot of tug to loose , and if a diaper will not stay on , its effectiveness be lose . paired with the price , this cover have become a back-up for I and be a disappointment .