The world's dorkiest accessory

I am trying to get back into the habit of walking a few miles every day or two for exercise. I use an app on my phone called "Charity Miles" that makes a donation through one of its sponsors based on the distance travelled in a walk, a run or a bike ride. Today, I walked for food banks.

It was allegedly 87 degrees out, but it was a super-humid, windless 87. I didn't go as far as I would have liked. I knew that my air conditioner back at the house was humming along, and the draw was too great. 

When I go for a walk, I use spray-on sunscreen. I wear a baseball cap and sunglasses. I also take water along. Last summer, I walked to the .3 mile path in my local park, put a water bottle on a picnic table, and took a sip every lap- until I bought the dorkiest looking item I regularly wear. It's a clip-together belt fashioned a-la-fanny-pack with a lined bottle pocket. Yes, I am aware of how stupid it looks, and no, you won't be able to talk me out of it. It holds a water bottle, my house key, some lip balm and my phone, which ticks away the distance travelled while playing a podcast or an audiobook or something else nerdy. 

I live in the attendance area of the school where I teach, and I have seen my students while I've been out walking. I know they have seen me. They wave. None of them has subsequently mentioned the world's dorkiest accessory to me, though. Probably because my students are embarrassed for me.