a frieze, smartstrand or nylon and something with a texture retention warranty. Look specifically to see if there is an exclusion for stairs. S'martstrand does great on 'stains' and very resistant to matting etc. Density isn't really an issue since frieze tend to be little 'looser'. The key is the twist to the yarn and the fact that your walking on sides of the yarn vs the 'tips' so 'wear' isn't much of a factor.

Ok here are the two that we are choosing..could you provide your preference and why.

Phenix N112 Winter Park BCF Poly 10 yr texture retention 42 oz
or
A tigressa nylon Fox Lake 15 Year texture retention 30 face weight 6.1 twist

We like the look pf the winter park better, but both are the same price and we feel like the tigressa is a better deal. Our main concern is the steps and what is going to look best after 5 years and we can compromise on style as long as it is a texture or shorter frieze or even a "standard" carpet.

so whats your opinion?

The poly will not do well at all vs the Nylon. Polyesters just normally do not wear well. Our claims are almost always polyester issues. Go with Nylon. Good luck

agree, the nylon would always win out over a poly