LifeGuard Pond Liner 50 ft. x 100 ft. 45 Mil EPDM Rubber and Underlayment Combo - CLGUG50X100

Liner came folded on itself and then rolled, quality material. I put this down in any area with large tree roots and bricks below the liner, it has held up well and has not been punctured even with heavy foot traffic. The underlayment is not quite what I expected, it is simply felt cloth, but it does help protect the liner. I would recommend this liner.