Pentax UP 8x25 Fernglas

They're compact and while not the most compact, they're probably the smallest porro prism binoculars you can buy. Great image quality, a lot better than I was expecting for 21mm. One advantage is that as they don't really fold up, they're always ready. They look a bit unusual, but I think this adds to them looking unique and they handle as well as any others I've used. I was a bit unsure whether to buy them as there's very few reviews online, but I'm really happy with them and I'm sure you will be too.