I wish I had found these for my first pregnancy, and earlier in my second pregnancy. They really work amazing, and they aren't meant to hold your pants up, just keep the waist in place. I'm 2 weeks post-partum and with these am back in my pre-pregnancy clothes. I'm planning on buying more, not because I'm planning on getting pregnant any time soon, but because they are AWESOME for nursing, they layer like a tank, but without having to pull something else down, or mess with straps.  They are soft, and stretchy. Fairly true to size, I was a size 8/10 pre-pregnancy and bought a #2, perfect fit. They also wash well, with very little fading, stretching etc.