2pcs Collapsible Mugs (450ml & 75ml), Retractable Stainless Steel Portable Folding Mugs with Keychain for Outdoor Travel, Camping, Hiking

I picked up this Ksheria 2-piece collapsible mug/shot glass set because I wanted a compact, sturdy and reusable cup for camping.I like the 15oz (450ml) telescoping cup the best. It’s a regular cup size. When folded up, it’s light weight, has a protective cover, has a small metal carabiner for attaching to a pack or belt loop and is a little bigger than the size of a round tin of shoe polish. It hasn’t leaked and, yes, I need to be careful to open it properly (snugly), so it doesn’t accidentally re-collapse. All in all, a good mug that will keep me from having to pack a lot of plastic cup garbage back out when out camping.The 2.5 oz (75ml) shot glass. It’s a great size for a shot glass. It functions same as the 15oz mug with the same style carabiner and everything. Collapsed it’s about the same size as a smaller breath mint tin. I probably won’t get as much use out of this because I really don’t use a separate shot glass when it comes to my spirits when camping. Also, the metal shotglass is just a little off center on the base which catches my eye.I’d say for trips where I’d be out a couple days and would need multiple cups and space were also at a premium, this mug would work great for breakfast OJ or maybe a mixed beverage and keep the plastic garbage levels down. If I were sharing my spirits with a lot of random campsite neighbors the shotglass would come in pretty handy, too. [...]