FRYE Men’s Smith Engineer Boot Review August 2, 2018November 9, 2018 - MusicalAntelope 100% Leather Imported Leather and Synthetic sole Shaft measures approximately 7.5″ from arch Heel measures approximately 1″ Platform measures approximately 0.5 inches Engineer A small amount of heel slippage is normal with new boots. When you receive your boots, try them on in the afternoon, as feet tend to be largest this time of day 14 Inches shaft circumference Show more FRYE delivers a distinctive classic with this square-toe engineer boot.