JtarchalaS35VN with a coarse satin finish like the Metamorph can show some discoloration from things like skin oils or whatever, just wipe it down and remember that it will pick up fingerprints and residue really easily.
OmniseedUnderstandable but it seems that the blade I received had multiple stains on it and wouldn’t come off. Even wiped it down with alcohol. Weird for being a stainless material and new at that. The handle also had snail trails. As if it had been previously used. For what I paid I’m not complaining it’s one of my favorite folding knives yet odd to receive a new knife in used like conditions.