Essie's After School Boy Blazer is one of the most coveted colours of this Autumn/Winter, and from the first time I wore it, it wasn't hard to understand why. I very rarely apply and then re-apply a nail polish, but I have multiple times with this one. It's effortless and the super-dark navy is a great alternative to a flat black.
Everyone went mad for this when it came out - it sold out of a lot of Boots stores and I'm not entirely sure if they're still selling it now. Happily, I feel like Rhythm & Blues from the excellent Rimmel Salon Pro line is a dead ringer for After School Boy Blazer.. These Salon Pro polishes are some of my favourite polishes ever - you can see a full post on them here - but suffice to say that they are really long-lasting and sometimes far better than Essie.
L: Essie After School Boy Blazer. R: Rimmel Rhythm & Blues.
I feel like the Rimmel formula is actually slower to chip on my nails. It's also cheaper (Essie is €9.99, and the Rimmel polishes are a slightly more pocket-friendly €6.45). On my nail wheel, you might notice that the Essie is slightly more pigmented, but there isn't a discernible difference on my own nails. Both of these are great polishes, but, I wouldn't urge you to hunt down After School Boy Blazer when it has such a widely available, cheaper twin!