Good sized crossbody bag
I purchased the Pacsafe GO anti-theft festival cross body bag as I wanted something relatively small yet which would hold all the essentials for airport travel save using a handbag or rooting around in my backpack. I found it to be the perfect size. I was able to fit my passport, boarding card, purse, phone, reading glasses etc in. The two dock locks are a great security feature and are very easy to unlock when necessary. It felt reassuringly secure and felt very comfortable to wear.