The Medela Pump In Style Advanced Breast Pump with On the Go Tote is the perfect breast pump for mothers who do not stay in just one place on the course of doing their day jobs. It is very portable, easy to set up and most of all, it effectively pumps the breast in relative comfort. The entire set is not that heavy. This means mothers won�t have a hard time lugging this arround. It helps prevent cases when a woman�s clothes gets soaked through due to the milk from her unpumped breasts. The Medela Pump In Style Advanced Breast Pump with On the Go Tote is truly an innovative way to guarantee quality breast milk for children without inconveniencing moms. It truly is a wonderful breast pump device.