N1 - Kjerag The lightest and fastest model available. Like Kilian himself, this is for pushing the pace. Race and high performance shoe for fast runners. Most advanced technologies and materials. Reactivity, stability and minimum weight. UPPER: MATRYX JAQUARD Kevlar & Polyamide: High End Material Resistant, breathable and adaptive. OUTSOLE: LITEBASE MEGAGRIP Lightest and durable vibram compound MIDSOLE: SCPF (Drop 6mm) 23.5mm, 17.5mm Low density foam: Weight, rebound, energy return +TPU Film filter: Extra protection and shock absorption WEIGHT 200gr ( 9US (8uk))