***Reader Alert: For women. I'll investigate male purses and backbacks at a later date.
Believe me, I 've tried out so many purses, and have come to the following conclusions:
1. A medium-size cross-body model for ease of walking relatively hands-free
2. Tamper-proof strap to foil potential pickpockets
3. RFD blocking capability to protect your credit cards
4. Full zipper for main compartment
5. Additional smaller pockets including one for your water bottle