Sustainability. Unlike other razor blades that are full of plastic and low-quality multiple blades, double edge blades are solid steel which makes them recyclable!
Eliminate Irritation. Has your face ever felt like scorched earth after a shave? Double edge razors are used at an angle of 30º. When operated correctly your skin will not become irritated or experience razor bumps. Why? Well 3-5 blade cartridges will function like this: 1st blade pulls the hair, 2nd blade hacks, pull, hack, pull, hack. Have you ever curled a ribbing using scissors? Essentially that is what you are doing to your face and the cause of razor bumps.
Cost-effective. Steel, stamp, box, done. Manufacturing double edge razor blades are so much easier than multi razor cartridges. Allowing us to keep costs down and still deliver a premium blade with small, uniform grain and a post-process that includes Teflon, nitrogen, chrome, and platinum coatings.