About Garmont Hellum Boot: Paul Parker here. I'm the Garmont Ski Boot Product Manager. This is our Helium top-of-the-line three-buckle ski mountaineering boot. It's a full Pebax construction, so it's very light. Three buckles, and it incorporates our unique high overlap design, which gives the maximum downhill control, yet walks much more easily than a tongue design. This boot walks like a three-buckle boot, skis like a four-buckle boot.