Nitro Optisym vs Nitro Phase

How they compare

Both target all mountain terrain, while the Nitro Optisym leans more freestyle, while the Nitro Phase leans more backcountry. The Nitro Optisym uses a twin shape while the Nitro Phase is directional. Both feature camber profiles — arc underfoot for strong edge hold, pop, and stability on hardpack—lively and precise. Both are rated 6/10 flex (medium).