The design is surprising; dimensions, unsuited. The fastening system is also poorly studied; the strap is too short, in addition to being uncomfortable. She tends to tighten the skin and mark, probably contributing to the refusal (common) putting the child. Overall, it seems very suitable for children age move. Finally, a poorly thought product, this ergonomic. Difficult to adapt, it also takes away (too) easily, which raises questions when it comes to protecting children. Disappointing.