Sea to Summit Mat Coupler Kit by Sea to Summit Sold out This product ships from the United States 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out Nylon Webbing Imported Couples any combination of two Sea to Summit Sleeping Mats Weighs .5oz/17g Connects the Sea to Summit Sleeping Mats at the top and bottom of the mats