1st received the combination had a hole in the crotch seam and the seller immediately sent a new copy faultless service so following my complaint nickel by cons I had followed the other guest reviews before ordering and fortunately qu'extensible well as the combination of size very very small, so I recommend you to automatically take the size up for your child My son is 5 months (64 cm and 6.2 kg and model suits him perfectly 12-18 months)