Thule Seat Bag
Under seat bag with smart tool wrap to keep your tools organized and easy to get when you need them. Just enough room for all your essentials. Comes with a handy organizer so you know you're not wasting space.
Sturdy, very compact, keeps tools from rattling. No tag on logo to hang a light, but the profile is small enough to allow a light to be seen if mounted under it on the seatpost. Elastics holding the cover on are very strong, cover will definitely not come off.