Suited to long routes of any difficulty, the Helix will soon feel like part of your DNA. These are a good choice for emerging climbers and those who want comfort and versatility. They features a precise, all-day fit, with sensitive soles that are still stiff and supportive enough for balance on slabs and cam into cracks. Slight asymmetric shape and flat toe profile Medium stiffness ensures sensitive feel for steep or gym climbing with support for slabs or edging Low heel tension for comfortable fit with enough lock for pulling heel hooks Sticky and durable 3.5mm rubber for secure grip Members typically downsize 1-1.5 sizes (performance fit) or 0.5-1 sizes (comfort fit) from their street shoe size Specifications Weight 400g - Size 38 Ideal for Bouldering | Sport and top rope climbing | Indoor climbing Type Neutral Asymmetry Low Stiffness Medium Closure Lace-up Upper Leather Outsole 3.5mm Vibram XS Edg Lined No Made in Italy