- Backrest Bag, Modern/Basic � This multi-pocketed companion easily attaches to the rear of the driver�s or front passenger�s seat. Made from hard-wearing, easy-to-clean material. / Rear Storage Bag, Modern/Basic � A combination of exceptional design and intelligent functionality. Attaches to the back seat with the center seat belt. Provides useful additional storage and includes two exterior cupholders. Made from hard-wearing material.