Originally Posted by
SJC ORD LDR
I have a Lowepro ProTrekker 400 AW, which is smaller than your ProTrekker 450. So, that will fit.
The bag I want to take is a Think Tank FirstLight 46L+, which is 13.8” W x 21.7” H x 9” D (35 x 55 x 22.9 cm). It allows me to take my camera body along with my long telephoto lens attached.
The dimensions of my 450 are 36 x 25 x 52 cm. Height is the dimension that is most challenging wrt to size of the bins. You should be fine at 22.9 cm vs my 25cm.