Addendum March 2015:
The booties have served their purpose, ie without leather sole underfoot, it would certainly have been a lot more accidents on slippery parquet and tiles. Meanwhile, the little one is quite sure on their feet and go sliding with only socks on his feet hardly made. The booties were becoming a great help in the time of mobile, have now also be worn out with the beginning of 11.Lebensmonats; we had in our case, almost 2 months earlier go to the next shoe size (was recommended 6-12 months). The leather soles of the booties measures 12cm (measured outside). An insole (as I have read it in other reviews on this Crawling little shoes) there in our little shoes not know what I would find but also impractical for crawling.
One point I prefer subsequently the quality of Schühchen however from: The brown color of the booties was strongly rubbed off already after 2 months, all other colors are badly worn, even the turquoise color at the ankle area (which hardly the bottom comes into contact) now looks very ugly, the white clouds look dirty from. Next to Offer I find it therefore no longer appropriate, even though the little shoes very well still fulfill their function. The abrasion of the color had produced in me the unpleasant feeling that the little one could poison the chew on his booties or get at least abdominal pain. I have therefore taken him this regularly, even if he found this very interesting and always liked to explore. Satisfied, I was nevertheless, in particular because the leather booties this is not as strong and rigid as in other Lederkrabbelschühchen but soft and therefore not have to be long "eingekrabbelt".
In summary, generally an acceptable value for money; purpose of colorants, the manufacturer should still think of something.