I bought these for a 5 year old (soon to be 6) who walks. He wanted something that would protect against the sun but not fall off his face during track and field events. Okay, he doesn't ride "that fast" in just 5, but there's very little between 1st and last in 100m, regardless of age. He also wears them during track training, including sandpit jumps. They hold up well, look good and block the sun's rays well. Not sure if they will fit a 12 year old despite the adjustment. But really great for younger kids (under 10 I would say)
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