Night runners and cyclists, listen up - this dulvus LED safety vest set is seriously going to upgrade your nighttime workouts! I've been using this for my evening runs and the visibility is incredible - cars can spot me from way further away than with regular reflective gear alone. The set includes the main vest plus two rechargeable LED armbands, which is awesome value. The vest has five light colors (white, green, blue, pink, red) and three modes - steady, flashing, and RGB cycling - so you can choose what works best for your environment. The reflective materials on the back add another layer of safety, catching headlights from all angles. What's really smart is the adjustability - the shoulder straps extend from 16 to 24 inches and the waist from 26 to 49 inches, so it fits pretty much everyone comfortably. The USB charging is so convenient too - just 50 minutes of charging gives you up to 24 hours of use! There's even a waterproof storage pocket on the front that perfectly fits your phone and keys. The armbands are included in the set and they're rechargeable too, providing 6-8 hours of use after charging. At only 110 grams, the vest is so lightweight you barely notice you're wearing it, but it stays securely in place during movement. If you exercise after dark and want to feel safer, this dulvus set is absolutely worth it - the peace of mind alone makes it valuable!