K2 Afterblack vs Nitro Optisym

How they compare

Both target freestyle terrain, while the K2 Afterblack leans more all mountain. The K2 Afterblack uses a twin shape while the Nitro Optisym is asymmetric. The K2 Afterblack has a hybrid (rocker/camber) profile (mix of camber and rocker zones for all-mountain versatility—grip, float, and play in one profile), while the Nitro Optisym uses camber (arc underfoot for strong edge hold, pop, and stability on hardpack—lively and precise). Both are rated 5/10 flex (medium).