Get this large Diaper Bag Backpack, Gray for $19.18 (was $36.99).
This diaper bag has multiple pockets and compartments which can hold all essentials for your baby. It comes with waterproof changing pad, small waterproof storage bag, 2 stroller straps. 1 large diaper bag size: 11*8*17 inch.
The backpack has thick sponge pad mesh wide cushion shoulder straps so the weight load will spread well across shoulders and back, making it feel light and comfortable.