The belt is MUCH too large for "first running exercises". Our little one (normal size for his 11 months) can still pack an entire his big Teddy, so that the thing approaching normal. Unfortunately, the closures are riveted, so that they can not move. Just a few extra holes not help, because as I said not 2cm, but 10 cm missing (in the chest). Also on his shoulders he is clearly too large. I would say, a two year old child fits well because maybe clean, but not a toddler learning to walk straight. In addition, the quality label also misleading (100% cowhide), but that was already described and the price you can probably no longer be expected. Returning and settlement on Amazon was but without any problems!