I received the Bolt 10 as a part of my MR40 kit and found it to be very interesting. When used as a part of the MR40 i carry the essentials in case i need to drop the big bag or just want a day pack. It fits the following in the main compartment without hassle : SOL escape bivi, USGI poncho, water filter kit (hydrapak 2l bladder & be free filter), shemagh, 450 ml TI cup, SK-5 knife, 20m cord, 6 x 400cal food bars.
In the outer upper pocket: fireant stove with 12 esbit tabs, water purification tabs, firesteel & knife sharpener.]
In the outer lower pocket: AMK steelhead first aid kit with added trauma dressing & gauze.
For me the only downside is it needs a chest strap so i easily fitted it myself. It really surprised me how much it fits in yet is tiny to wear ............ it truly is bigger on the inside. I like it so much, i have bought another as a grab and go bag for the car.