I have a small carry on for domestic use such as the Red Oxx Gator bag, but wanted something more substantial for international carry one travel only. I was looking at the High Sierra AT205 model is a 22" wheeled backpack, but I have now purchased the newer 405 model which has a slightly larger removable daypack. The 205 was selling at www.luggageprofessionals.com.au in Sydney for AUD$145 and the 405 I purchased cost a little more at AUD$205, however, I am pleased with the durability/strength of the bag and I think it will do nicely for future o/s trips. Although this bag does not meet the size requirements for Qantas domestic flights I have the other smaller bag for those flights. Thanks all for your replies.