A new member was asking about the Insight rear cargo net which often goes missing from the rear.
The Honda ones which I don't think are available from the dealer were like $40.
Cheaper generic ones are available with similar quality.
For example: Floor Style Trunk Cargo Net for Toyota Matrix 2003-2014 NEW
The dimensions of the car are: 35"x33" (89cm x 80cm)
35" at top between the left hold down ring to right hold down ring.
And 33" (80cm) on the sides from the front rings to the rear rings.
So search on eBay for "trunk net" these are the floor style ones vs. envelope style.