Topo Athletic - Ultrafly 4. Color Grey/Navy. Low Stock. On sale for $96.17. MSRP $135.00.. 4.1 out of 5 stars1 left in stockBrand NameTopo AthleticProduct NameUltrafly 4GenderMen'sColorGrey/NavyPrice$96.17MSRP: $135.00Rating4Rated 4 stars out of 5(66)