The "Fibrils with Roof" architecture has strongly enhanced static adhesion. Surprising, at the same time, its sliding friction properties are essentially unchanged.

“Strongly enhanced static friction using a film-terminated fibrillar interface”, Lulin Shen, N.J. Glassmaker, A. Jagota, C.-Y. Hui, Soft Matter 4 [3] 618-625 (2008)

“Mechanism of sliding friction on a film-terminated fibrillar interface,” Lulin Shen, Anand Jagota, Chung-Yuen Hui, Langmuir, 25 (5) 2772-2780 (2009).