These shoes (WW955) are made with the WOL-01 last which shares the same attributes as the SL-2 last, narrow heel, higher instep, deeper toe box, wider forefoot. Since the WW927 (SL-2 last) were working for me, I thought I'd try the WW955. They fit perfectly. I bought these to wear on gravel walking paths and during our long rainy season. So far, so good! My feet are very picky, getting pickier as I get older. They tend to supinate and my toes do not like being squished. I'm very happy to have discovered these New Balances. Now that I know which New Balance lasts work for me, I can order online with confidence.