I was with the leave of the image entice Jack Russel Terrier in his pocket to buy the backpack. My Westi is a bit dated, but may still like to come to hike, but unfortunately he can not go that long. That's why I decided to buy a backpack for him. However, it should already be comfortable and of good quality. The Trixie Connor is much too small for my Westi, he wanted to go in and not at all I would not 'reinsetzen' it can, because it requires no opening is large enough.
I would transport dogs of the size as Maltese or Yorkshire terrier with it, but for larger dogs the backpack is not suitable.
I've now ordered me to Wolters Pet Trolley Traveller Plus, since this / is resilient and also larger higher up to 11 kg. I hope that this backpack fits better and provides more space for my Westi.