Kuen's Surface, Gold Women's Favourite T-Shirt

On a surface in Euclidean three-space, straightest paths, those of locally-shortest length, are called "geodesics." Kuen's surface has "Gaussian curvature" equal to -1 (away from curves where the surface pinches to a sharp edge). Concretely, for every geodesic triangle on the surface, the sum of the interior angles (in radians) is equal to pi minus the area of the triangle.

Women's T-shirt featuring a slim feminine fit, crew neck, short sleeves and superior Airlume combed and ring-spun cotton. Offered in a variety of solid and heather cvc colours.