Like any floor, it can be when wet and so it isn't recommended outside or in places subject to greases and oils. We wouldn't recommend it in a bathroom, kitchen, or garage. It gives good traction in most conditions and wouldn't be the flooring choice for most big box stores, many grocery chains, and many modern high end lofts and homes if it were a hazard of any kind. Lower gloss levels do give slightly higher coefficients of friction and so if this is a big concern for you and you'd like to be more on the safe side of things, go with a matte finish.