Rearview Hand Mirror
Now here's a footy way for bikers and cyclists to add an extra layer of safety to their rides. Cheaper than a bag of chips, and way cheaper than assuming nothing's there and being wrong, too. CIPA's rearview hand mirror consists of a convex lens attached to an adjustable Velcro strap that fits and functions over gloves, and on either the left or right hand. The mirror is also vibration-free so you won't vomit while looking at it. Unless you just ate the gluten-free vegan mac & cheese my girlfriend's cousin served us for dinner last night.
In addition to motorcycles and bicycles, CIPA recommends enhancing your rear view with their hand mirror on ATVs, dirt bikes, snowmobiles, and self-balancing personal transporters.