Dear friend;
You don't need to choose light color,Because every shoes can glow 7 kinds of color.
It not only can shine one color,but also can mix seven colors flashing.
You just need to change the color by the switch.
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If you are a man, you can choose the right size according to the size of the following.

shoes Size 35 = EU Size 36.5 = US Size 4.5 = UK Size 3.5 = shoes length 225
shoes Size 36 = EU Size 37 = US Size 5 = UK Size 4 = shoes length 230
shoes Size 37 = EU Size 37.5 = US Size 5.5 = UK Size 4.5 = shoes length 235
shoes Size 38 = EU Size 38 = US Size 6 = UK Size 5 = shoes length 240
shoes Size 39 = EU Size 38.5 = US Size 6.5 = UK Size 5.5 = shoes length 245
shoes Size 40 = EU Size 39 = US Size 7 = UK Size 6 = shoes length 250
shoes Size 41 = EU Size 40 = US Size 7.5 = UK Size 6.5 = shoes length 255
shoes Size 42 = EU Size 41 = US Size 8 = UK Size 7 = shoes length 260
shoes Size 43 = EU Size 42 = US Size 8.5 = UK Size 7.5 = shoes length 265
shoes Size 44 = EU Size 43 = US Size 9 = UK Size 8 = shoes length 270
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If you are a woman, you can choose the right size according to the size of the following.

shoes Size 35 = EU Size 37 = US Size 6.5 = UK Size 4.5 = shoes length 225
shoes Size 36 = EU Size 37.5 = US Size 7 = UK Size 5 = shoes length 230
shoes Size 37 = EU Size 38 = US Size 7.5 = UK Size 5.5 = shoes length 235
shoes Size 38 = EU Size 38.5 = US Size 8 = UK Size 6 = shoes length 240
shoes Size 39 = EU Size 39 = US Size 8.5 = UK Size 6.5 = shoes length 245
shoes Size 40 = EU Size 40 = US Size 9 = UK Size 7 = shoes length 250
shoes Size 41 = EU Size 40.5 = US Size 9.5 = UK Size 7.5 = shoes length 255
shoes Size 42 = EU Size 41 = US Size 10 = UK Size 8 = shoes length 260