One of my all time favorite shoes. Bruins fit pretty narrow, and are minimal all around with regards to padding, tech, etc. They use the older style of zoom air insole with the little heel pod, insoles are flat as well.
While they don’t offer much in the way of impact protection, they keep their shape throughout the entire lifespan of the shoe, and I’ve never had the sole flop out on me like soletech shoes or even the GT Blazer.
Short answer - Bruins are the real Blazer lows, in my opinion. Similar impact protection and boardfeel, and keep their shape and structural integrity.