When you are still light and shorter with less overall mass to float, 87mm underfoot provides ample lift in all but the deepest snow. The relationship of ski surface area to body size should feel equivalent to a 106mm underfoot ski driven by a full grown adult. The tapered tips and tails and subtle rocker cues blend the Grom's ability to carve on the groomers while providing predictable, high-performance security and balance in crud and mixed snow.