Ten years in the making. That's where the X comes from.

The inaugural product from our XC Series. For every customer who pushed harder, every mountain that pushed back, to everything we've learnt over the past decade — all of it has gone into the X Shell.

Built for the most demanding conditions on the mountain, the X Shell is our most technically advanced one-piece to date. A lightweight three-layer membrane delivers industry-leading 20,000mm waterproofing & 20,000g/m² breathability, keeping you dry without ever trapping heat. Fully taped seams close every possible entry point for the elements, so you can focus entirely on what's ahead.

RECCO® technology is integrated as standard — a safety measure that requires nothing from you. Large underarm and leg vents give you complete climate control on the climb. A peaked hood sits cleanly over a helmet. Gloss-finish zip taping & branding give it that Oneskee design edge, just enough of a statement for this hero piece.

Available in two contrasting colour ways.