This is the Go Sling Mini from Alpaka. It's in great condition, no defects. I believe it's a limited edition version that's no longer available on their site.

I'm providing a description based on what I found on this item online.

• Head and Neck Cover • Toiletries • Internal scratch-proof tablet sleeve fits an iPad Mini or a Nintendo Switch • Premium Fidlock magnetic buckle • 3 compartments • Compartments are lined with 210D high-vis Orange Ripstop Nylon • Front quick-access compartment • The main compartment comes is equipped with two pockets to store smaller items • The rear compartment is designed to carry your Passport and other small valuables • Key tether in the front compartment • The strap can be quickly and easily adjusted on the go • Lockable zipper Dimensions 29 × 19 × 6 cm Capacity 4 litres Shoulder strap length 110cm (not including bag length