Salzmann 3M Waterproof Backpack Cover - Reflective Backpack Protective Cover - Made with 3M Scotchlite

I haven't gotten to actually use it while biking yet, because my bike needs fixing right now. But, I put it on my backpack the other day and shined a light at it... holy cow. It sure is reflective. Add that to the neon yellow and orange colors of the fabric, and you WILL be seen!

Fits a little small ,barely fit my Gregory z30 Lt. Pack.Really nice quality

Can I give this 10 stars? I got this to put over my FENRUIEN 17.3-Inch Hard Shell Laptop Backpack just in case I got stuck in a downpour or had to walk home in the dark in the winter. Wow is the white triangle cover really, really, really reflective! It picks up any light and just glows like you’ve got some alien light on you! I was standing at an unsafe dark bus stop on the side of an extremely busy street and normally buses just whiz by you if they don’t see you and don’t flag them down first. Every bus stopped without me even flagging them (even buses I didn’t need!) & asked if I needed the ride because they could see this reflection at this very dark stop. I also had to walk a mile in the dark up a dimly lit street with cars driving by, and I could tell they were actively avoiding me once their headlights hit the reflective cover. It’s easy to slip on and off and stays on with two adjustable snaps straps and elastic opening, but depending on the backpack’s style it might conflict with the straps (but if it’s rain you’re worried about, the top of the backpack will be covered if you strap it criss-cross maybe). It’s easy to scrunch or fold up and tuck into your backpack when done (about the size of a med-lg coffee paper cup). It should fit over a soft baggy backpack easily, fits my hard shell perfect. If you need one for a bike/scooter ride or jog or fishing - If you want to be seen, I cannot recommend this one enough! The best thing is it doesn’t need batteries like some LED harnesses or bike lights do (obey state laws on bicycle lights please, this is not a replacement for lights that help you see or others see you, it just REALLY helps others see YOU. It does not give off light like a flashlight.)

Waterproof, durable and high vis! Medium fits over my 26L backpack perfectly. Very pleased with this product

I've been commuting by bike for a very long time, and I've never owned a product that made me feel safer at night than this. Cars and trucks have suddenly decided to start changing lanes to avoid me. The Scotchlite is extremely effective and impossible for drivers with operating headlights to ignore.As a waterproof cover it does a pretty decent job. I wish it had a way to clip at the top of your pack or secure around the shoulder straps, but it works ok as it is.The Scotchlite, while extremely effective as a reflective material, is not very durable. Placing your pack on pavement will inevitably scrape it up and put tiny holes in it very quickly, unfortunately.The elastic straps that attach it to your pack work, but have been folded over at the sewed ends in the wrong direction - the buckles will easily slide off as they work their way toward the end of the strap. If the fold was in the opposite direction it would catch the sharp edge in the buckle and not be a problem. I solved this by just flipping the buckles over, but this really shouldn't be necessary.In summary: a fantastic product that is potentially lifesaving, but could be improved with some minor tweaks.