The measurements of Boris are within the regulations of most airlines. The weight might be a point of discussion – as it is for all passengers. Check the airline regulations to find out what the maximum weight is and if extra weight is allowed when paying an extra fee.
The front pocket is 45cm x 35cm and is unpadded.
Since the bag is made of fabric and foam and not plywood, it allows some margin. If you wonder if your gear will fit in, feel free to ask!
17 + 17
If you wonder why the outer/inner size of depth of the bag differs so much more than the outer/inner size of the height: we have added the size of the shoulder straps and hip belt to be secure.