I got an Arctic Circle fitted with a pentafold birdseye lay-in soaker as a tester. It is one of my favorite diapers! I was very surprised at the absorbency of the birdseye soaker - I guess we're all so brainwashed into thinking that birdseye is at the bottom of the absorbency chart or something....
Anyway, the lay-in soaker is made of 2 layers of birdseye cotton, which is folded 5 times to make 10 layers. The folds are sewn right in, so you don't have to wrestle with exact folding. I normally fold lay-in soakers in half to keep all the absorbency to the front, but I decided to try laying this one out flat. It went as long as any of my heavy-duty absorbency diapers, while bing FAR trimmer.
The hook & loop closure is only on the wings, which can be kind of hard to get used to....but it clearly has plenty of advantages. Because there is no loop tape on the front of the diaper, you can fold down the rise to fit any size baby. I also have had a hard time with laundry tabs on many hook & loop diapers - some scratch, some are a pain to use, or don't work - but with this diaper, you just close the wings back up to wash. No laundry tabs are needed, and the baby doesn't feel the closure.
I've been very pleased with my Arctic Circle tester - it's a trim, absorbent diaper with an innovative design. I also use it, without the lay-in soaker, as a swim diaper because it fits so well.