I bought these at the gym after forgetting my Agend S goggles at home one day. I have tried 4 different pairs of mid-size goggles and I like these the best. I got a good fit almost right away and don't find myself fussing with them all the time. For me, they are a perfect size, not too big and not too small. I'm really impressed with the peripheral vision. Just right for making sure I'm on my side of the lane and the side vision is very clear. The silicone flange is very soft but also sticks out far and maybe that is why it was easy to get a seal and keep a seal. The dual-band gets twisted easy but after a day or two I get them on without them twisting.