This is a CamelBak waist pack. I've used it about three times. I think it's in very clean condition, with no scratches or stains. The bottle holder is versatile and can accommodate bicycle bottles, PET bottles, water bottles, etc. The small item compartment can easily hold a smartphone, energy bars, and other small items. There's a strap inside, so you can attach your keys or wallet for peace of mind. It's a convenient size for cycling or walking.