This is fantastic!  Just check out the sizing chart, it's accurate.  This is super helpful, wish I'd had it from day one! The completely adjustable backing ensures a fit whatever your size, the optional straps would help a variety of sizes!  I got this and the Medela, and this is way better than the Medela! You can multi-task rather than getting stuck, or worse- spilling! I recommend this to any nursing mom!