Herman Miller Wireframe Sofa?  

I have some Lanalux fabric.  The wear rating is very low and I'm pretty sure it's because the fabric is going to pill.  I mean, that's what the wear rating is about---how many double rubs the fabric can take before it starts to pill.  The wool threads in this fabric are what's called "roving"---unplied wool, no twist to it at all.  it's very soft and luxurious but I wouldn't use it on anything that's going to get a lot of use.  
(I used it on cushions for my Ib Kofod-Larsen hoop chair but it's not a chair that is sat in very often so it's fine with me.  I love how it looks!)

Thanks for your advice on Lanalux. Do you know of any other classic Maharam fabric that might be more durable and better for the Wireframe?

Does anyone know about the MCL leathers and their durability? Especially the darker colors?

Contact your retailer's customer service department or hire a designer, or just read what's on all the modern-oriented retailer websites that sell this thing.  

Hallingdal, Tonus, Tonica are all good choices from Maharam/Kvadrat.  Maharam has a lot of others that would be great---just go to their website and look.  They give wear ratings and their color swatches are very accurate.  You can order swatches for free but you need a tax ID to order the actual fabric.  Consult a decorator or architect if you don't have a tax ID and then expect to pay their markup over the prices given on the Maharam site.