Derby is my favourite out of them all. It is sharp enough and has the best longevity.

In my experience, sharper (like Feather) is not necessarily better. The extreme sharpness of Feather only shaves *per stroke*. For most people, they still have to go back over the same spot and also, against the grain. If you do this with Feather, it takes off the top layer of the skin too - so you only want to shave in 1 or 2 strokes. So in practical reality, the Feather is limiting as my skin always feels very sensitive after using Feather.

With the Derbys, you can shave over the same spot over and over again, and against the grain. There are no worries - you can even apply pressure to really get that close shave. If you did this with a Feather, you would get nicks and cuts. The Derbys provide the safety, convenience and speed of catridge razors - but even better performance and much much cheaper.

Also, because the Derbys are less sharp, this means the blade is less thin at the edge. Which means for much better longevity. I get peak performance for 10+ shaves from Derby - whereas Merkur, Astra, Feather etc wear out by 4-5 shaves.

As I've been using double edge blades for years my last bulk buy was a few years ago.
Came across Men's Biz website by chance ordered the 100 pack of Derby Extra, arrived in no time!!!
First shave results are excellent.
Even started using them in my Straight razor,which takes these blades when snapped in two.Being sharper than my last blades I'm fully back into the straight razor. Great product and great website guys.Looking forward to my next order, trouble is where to start, so much good man stuff!!!

I tried lots of the blades in the sample pack.when it comes to valu for money and quality of shave. Thumbs up to derby. I get 4 shaves out of a blade and i think that is pretty good value

Good everyday blade, read mixed reviews but decided to try for myself - ended up ordering bulk.

Fairly smooth and comfortable shave. However these blades are not as sharp as others and hence shave is not as close.