Shun knives are simply the finest Japanese knives on the market (unless you have them custom-made!). Although they're little-know in the UK, they've a phenomenal reputation in the US and sell in their thousands, despite the price. The range is composed almost entirely of double-sided blades in the Western tradition, although there are single-edged deba and sashimi knives as well. The tremendous performance of Shun knives is derived from the blade composition of 32 layers of SUS410 carbon stainless steel folded around a core of V10-Gold high carbon blade steel. V10-Gold is a relatively new grade of high density steel with a 1% carbon content (double that of Global, Wusthof and most others). It permits the crafting of exceptionally sharp edges that are also easy to sharpen.