SKU: SS21166 Mat Size: Regular Mat Type: Closed Cell Foam Mats Season Rating: Summer R-Value: 1.7 Weighs: 397g Using a new BioFoam material the TwisterCane is a comfortable, durable sleeping mat. Ideal for trekkers who need the reliability of closed cell foam. Big Agnes says TwisterCane™ BioFoam Sleeping Pads are engineere… TwisterCane Bio Foam Regular Sleeping Mat