Bought these for my husband who fell in love with a pair of 517 V1's I bought him. He has an extremely flat 4E and was impressed by the softness of the v1. He wanted a spare pair in a different color but they didn't fit his width so I ordered a v2 instead. Apart from the optics, he told me that the v2 also fit differently. The toe is not that deep and there was no comfortable insole. So they returned.