"Knee room" refers to the available space between the seat in front of you and your knees, especially in a vehicle or on an airplane. It describes how much space you have to comfortably stretch or move your legs. Full definition
There's also 14 mm increase in rear knee room and shoulder room in the rear has been improved by up to 9 mm. (motorbeam.com)
There also appears plenty of knee room with good pitch. (seatguru.com)
The seats are comfortable and supportive despite being reduced in thickness and width to provide more knee room for rear - seat passengers. (wardsauto.com)