Pampers Feel N Learn
I'm not sure if these are still available, but I managed to get a few packets for my oldest a little while back. She is toilet trained, however going out to the shops (with her younger brother also) was always a huge hassle as she would refuse to use the toilet at the shops. These were very handy as they gave me peace of mind that I would not have any big accidents to deal with whilst out at the shops.
They are soft and seem to be very comfortable for her to wear, and they do a great job holding in the wee. They were also very good at holding in number two's when they did occur.
Overall a great training nappy. Not on the cheap side, but for the amount I needed for my child it was not a huge expense.