CrocsClassic Clog K, Black, 4 UK

What is the width size on the child 8/9 in navy?

Is the UK 6 size an Adult size?

My child is a size 12 & a half. What size would you recommend

Sorry, re size. i've got 2 pairs; 1 is 'made in italy' and 1 3. the other 'boulder colorado' and 2(smallm) 4(h). i'm usually size 2, so is j2 okay? ta