I bought the adult size as I didn't realize there was an XL adult size available. The pillow is very comfortable and I am happy with it, so much so I tried buying the XL size as it was slightly too small for my partner who has head drop. I wanted to use it while transporting him in his wheelchair in the van. The problem being I needed to buy two with expensive postage to get the bigger size so I decided not to. The adult size was a reasonable price and postage was free. Not sure why there should be this difference
Although not your conventional travel pillow, it has served me very well during many travels between 7-9hours on flights. Just returned from a 9 hour flight, sleeping 8 hours sitting up right with this pillow, no neck pains and quite pleasant to use. Light and comfortable.
Definitely not your usual travel pillow. I was doubtful but purchased it as the 'usual' travel pillows make my neck ache and I rather not use them. This one however is incredible! Great quality fabric, really soft and designed ergonomically. I recently travelled to Europe (20+ hours of flights) and zero neck ache! Highly recommended :)