I love my Wonderoos!! We have 4 of the v1's with the microterry? inserts and 3 v2's with the bamboo insert. I have found that the V2's are cut smaller so they fit my little girl (7months) better than the v1's now but I suppose they'll be a bit of a squeeze when she's older! I actually need to buy more and sell my pop ins as i really can't get as good a fit with them since my LO has a skinny waist and chunky thighs!