In ice hockey, the butterfly style refers to a style of goaltending in which the goaltender covers the lower part of the net with his or her leg pads, mainly by dropping down on the knees. Although effective and popular among goaltenders, this style can leave the upper portion of the net more vulnerable than it would otherwise be. The butterfly style derives its name from the resemblance of the spread goal pads to a butterfly's wings. There are a number of other recent innovations such as the V-H with which profly style goaltenders identify.