Thomas Baronwrote a review of SciCon Elan Seat Bag on August 27, 2015
Familiarity: I've put it through the wringer
I've owned numerous different saddle bags, and this is by far my favorite.
Super low profile, light weight, stays far back under the saddle, doesn't rub on my legs. It's fast and easy to attach and remove. The full top opening makes it easy to see and organize the contents. I regularly hammer down rough streets, but it stays completely secure. Long term, I'm not sure how the velcro will last under continual reattachment, but so far so good.
I have this on my CX bike right now and have squeezed in: a 700x43 tube, a tire lever, Park GP-2 patch kit, one 20g CO2, a CO2 nozzle, and a Park IB-2 multi-tool. There's still room around the edges for a couple small items (keys, etc.), but it's pretty packed. Packed is good, as it keeps items from shifting or making noise. It bulges out the top very slightly, but I use that to fill in the space between the seat rails and help it stay secure.