Amazon.com: Genuine Kawasaki Accessories Tank Bag for 08-12 Kawasaki EX250 : Automotive
Motorcycle Fuel Tank Bag for Kawasaki Ninja 250R Z250 Ninja 300 Z300 2013-2018 | eBay
DIY: Using a Saddlebag with pillion on the Ninja 300 - Team-BHP
Givi 4108KIT Mounting Kit for Kawasaki Ninja 300 2013-Current | Accessories International
Furst Gear - Saddle bags that fit snug on the #ninja300 - @viaterragear Falcon Sport saddle bags, does not need additional saddle stays and fits on all bikes. Storage capacity ~28 ltrs