<Li> The systems are not fully standardised . Differences between shoes from different makers, which are due to different methods of measuring the shoes, different manufacturing processes, or different allowances are sometimes related to different countries . A "German" size may then differ from a "French" size, although both countries use the Continental European system . </Li> <Li> Different widths may have the result that for wide feet, a shoe multiple sizes larger (and actually too long) may be required . This may also result in different size indications, especially if different typical widths are attributed to different sizing systems or countries . </Li> <Li> Some tables for children take future growth into account . The shoe size is then larger than what would correspond to the actual length of the foot . </Li> <Li> An indication in centimetres or inches can mean the length of the foot or the length of the shoe's inner cavity . This relation is not constant but varies due to different amounts of wiggle room required for different sizes of shoes . </Li>

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