For this Vine-product my 11monatige daughter could hold forth ;-) The diaper adapts well to the baby's body to constrict or without leaving welts / bruising. The child is not restricted in its movement. Tightening is also very simple, but this does not necessarily lie on the diaper, as every mother / father certainly everyone can judge for themselves ;-) Absorbent diaper is also, in the usual Pampers quality precisely. However, I would not recommend it to let the little ones diaper the prescribed 12 hours. First, it is not pleasant (even harmful) for the child and secondly the diaper holds no more than about 6 hours, then it is quite over, and ought to be changed urgently!