Ice Hammock A cush bivy ledge on steep ice or snow instead of a standing shiver-bivy. The Ice Hammock is made from UHMWPE webbing and 0.8 oz Dyneema, with raw dimensions of 50" x 96" (127 cm x 244 cm) and reinforced corners. It is intended for use on steep ice/snow as a means to place a tent on top of it. Developed in conjunction with severa