Moncler Grenoble Genius typically runs true to the brand’s own size chart, with some pieces cut close to the body and others designed relaxed for layering. Check the product page for size conversions and any specific fit notes if a style runs large, small, or intentionally oversized. If you sit between sizes, consider how you’ll wear it – over knits may call for more room, leggings and base layers usually sit closer to skin.