Sterile calcium alginate dressing consists of a thick, highly absorbent pad of nonwoven alginate fibers for the treatment of moderately to heavily exuding wounds. Highly absorbent. The white nonwoven fabric is 100% calcium alginate fibers. These hydrophilic fibers absorb more than 10 times the weight of the dressing, creating a moist environment conducive to wound healing and minimal trauma upon removal. It allows for wound contraction and gas exchange.