Topo Athletic - Ultrafly 4. Color Navy/Black. Low Stock. On sale for $97.99. MSRP $135.00.. 4.1 out of 5 stars5 left in stockBrand NameTopo AthleticProduct NameUltrafly 4ColorNavy/BlackPrice$97.99MSRP: $135.00Rating4Rated 4 stars out of 5(65)