This is the one I have and I really like it.

Diaper Bag Backpack, BabbleRoo Baby Nappy Changing Bags Multifunction Waterproof Travel Back Pack with Changing Pad & Stroller Straps & Pacifier Case, Unisex and Stylish (Gray) https://www.amazon.com/dp/B0834CSWQ3/ref=cm_sw_r_apan_glt_i_YK03CNQ4HBCDGSPMF4J4?_encoding=UTF8&psc=1