http://www.oxprod.com/index.php?pg=3&action=dept&id=47&pid=7&p= I was thinking about getting a tankbag or tailbag for my bike for quite a while. A backpack is handy but packing too much or too heavy in it can become uncomfortable on your back after a while. I thought about getting a Ventura system but at the time it was too expensive for me and I didn't want to have a rack on my bike all the time. After reading some reviews from the UK and seeing the bags on offer at various shops I could tell the Oxford brand was a notch above the rest. You can tell a lot of thought has gone into their products and they look and feel high quality. I realised I didn't want a tankbag yet, a tailbag would be enough for the time being. So I ended up buying the Oxford Deluxe Tailpack unsure of how it would stay on my bike without falling off. The bag comes with 4 inbuilt bungee straps which connect to anywhere solid on your bike. It also has a thick velcro strap which goes through your seat and locks into place when you lock your seat down. 4 more bungee straps (included) are used to secure the top of the bag when fully loaded. After testing the bag (wheelies and heavy lean into corners) I can say that with proper 'installation' it will not fall off or even budge. The bag has a neat feature where it expands upwards to give you 42L of storage space, enough for a full face helmet and a few bits and pieces. Realistically for me I can pack a pair of shoes, jeans, jumper, t-shirt, spare visor and a few more bits in the front and side pockets (which are about the size of a two fists each). In a small rear pocket is the waterproof cover storage and the straps to convert the tailpack into a backpack. The waterproof cover works well (as tested in the rainy conditions on the way to the GP). I tested the backpack straps while walking all the way around the Phillip Island circuit and they were very handy. All in all, I am very happy with the bag. It does everything it claims to and I was impressed with how well designed and thought out it is. For $160 you can't go wrong.