English to Italian Other Other bike seat

https://www.amazon.co.uk/dp/B019OEMEFQ

Features:
- Comfortable
- With velcro quick release design
- Quick installation and removal
Specifications:
- Material: Thick sponge
- Color/Style: Available in 2 Different colours: A style, B style
- Size: A style: 32*15*3.5cm
B style: 36*17*4.5cm
Package included: 1 X Cycling Bike Bicycle Soft Kid Cushion Without Rear Rack Seat


Cosa si intende per "Without rear rack seat"? Potrebbe significare " non sarà più necessario sedersi sul portapacchi?...