At the crossroads of academia and design, SINE & COSINE merges mathematical clarity with historical inspiration. The Amsterdam-based footwear analyses the defining elements of classic designs with precision and clarity with each detail being carefully evaluated, embraced for its timelessness or refined to align with modern sensibilities as seen with the Hannes Loafer Black.

The Hannes Loafer’s upper is crafted from a single piece of Italian grained calf leather. During the making of the shoe, the leather is pulled over our foot last, starting at the toes, creating a naturally smooth toe cap as the grain stretches. The interior is lined with soft cow leather to ensure durability and maximum comfort. The upper sits atop a leather frame sole and outsole that is stitched with a Blake-stitch construction. 

Italian grained calf leather upper. Soft cow leather lining. Cow leather frame sole. Cow leather outsole. Cushioned insole. Blake-stitch construction. The shoe is made in Portugal. Dust bags.. Made in Portugal

Colour: Black. Composition: Upper: 100% buffalo calf, Lining: 100% cow, Frame sole: 100% cow.