I use my camelbak backpack without the bladder for my daily backpack. It's blue but has all sorts of reflective stuff sewn into it. I never realized how reflective it was until I saw a picture taken from behind me when we were riding through a very long dark tunnel. All you could see in the picture was my reflecting backpack. For my night time commuting rides I use my safety vest. The vest is my top layer and goes over the pack and makes me a screaming visible hunchback. I also have lights clipped to me, the packback and allover the bike. No one is ever going to say they couldn't see me! bikerHen