To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S6. When the middle layer of a peeling sample is the hard PDMS (A:B = 10:1), the sample peels along an interface between the middle layer and an arm. The red middle layer is left on one peeled arm, but not on the other. Stretchable materials of high toughness and low hysteresis Zhengjin Wang, Chunping Xiang, Xi Yao, Paul Le Floch, Julien Mendez, and Zhigang Suo PNAS. 2019. 116:5967-5972 DOI: 10.1073/pnas.1821420116 Download Original Video Browse All Videos »