Kask vertigo light team sky rainforesta limited edition lightweight version of the vertigo helmet as used by team sky as part of the sky rainforest rescue campaign vertigo offers a true competitive advantage and a dose of style riders of all levels pull on the kask vertigo helmet marvel at the way the up n down retention system cradles your cranium buckle the chin strap and set out on your ride kasks self adjusting lateral divider means you wont need to make any adjustments under the ea