I have this and recommend it but it doesn’t have “safety” features:
Tomtoc but it's about 40 dollars. Cordura though at this price point
https://www.amazon.com/gp/product/B08HSZ7HSF/ref=ox_sc_saved_image_10?smid=A23FWTZ8UX6LWK&th=1
I recently picked up this sling by tomtoc. It's specifically sized for the Switch, and it's basically the same size and layout as the Aer Day Sling.
I can fit a Switch, iPad Mini, an Anker 20k pack, Jabra earbuds, cords, phone, wallet, keys, and other small miscellany in it without it feeling too bulky.
Plus it's on sale for $34 bucks right now... If you have Prime you could try it out tomorrow. If it's not for you, go with one of the more expensive options. But I'm glad I tried it because I don't feel the need to upgrade.
Its either called sling or crossbody. Im not the smartest when it comes to what you call it. All i want is a one shoulder strap backpack not a fanny pack looking thing. I just wanted to give that a shot rather than get a small backpack like 8 liters. I want this not something like this. I could just get it off amazon but i wanted to check with you guys to see what brand you guys recommended.
Mine is the Compact EDC Sling Bag, 4.5L
https://www.amazon.com/gp/product/B08HSZ7HSF/