The ExtraTerrestrial tyre was meant to serve as a heavy-duty off-road touring tyre that shines on hardpack surfaces. It uses a nylon breaker in the sidewalls for cut protection, a moulded pattern for anti-cut propagation, and a Aramid cap under the tread to protect against flats.
The ET Tyre uses a distinctly directional tread pattern and its width yields more traction than you might expect from a tyre with such little rolling resistance. The tread is low profile with a file tread in between tread blocks.
These tyres are tubeless ready and have a foldable bead.