The Seagull Black Bag rocks. I had a race this morning and packed all my gear in it. The bag is pretty big, got all my gear in easily. Helmet, shoes, change of clothes, food, 2 water bottles heart rate monitor, gloves, arm warmers, tool kit, spare tubes(in case i had problems with the wheels on the bike and the ones in the wheel pit), big towel for changing, keys, wallet and phone. All with room to spare. Gonna unpack it now and head off to the grocery store. The strap is super comfortable and i love the ease of operation for adjusting it. My only gripe is where the U lock holder falls. With the bag nice and tight on my back and with the stabilizer strap in a comfortable position the slot for the lock falls on my shoulder and is pretty uncomfortable. Good this there is plenty of room in the bag for the lock! I will post pictures later today after i recover from my race.