Other options would be:
-
Schwalbe G-One Speed (https://www.schwalbetires.com/bike_tires/G-ONE_Speed)
30mm
Has consistent micro dot tread across the surface of the tire -
Vittoria Terreno Zero (https://www.vittoria.com/us/terreno-zero-cx-and-gravel.html)
32mm
Has a slick down the center with hexagonal tread on the shoulders -
Vittoria Terreno Dry (https://www.vittoria.com/us/terreno-dry-cx-and-gravel.html)
31mm
More Cross/Gravel than the zero with hexagonal scaling down the center and more ‘real’ shoulder knobs