I've been using my sock. The only problem with that is, I forget I've done it. But the 1x bikes hardly need it and the Baconator has a bash ring.
When I got my Dad's bike stuff there were some of these, that clip on your ankle. Not hi viz though. They work fine.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."