Reebok Nano X2 Features Essential Blue - White. Core Black / Acid Yellow. Style# GZ6436 Size 12 See all photos. Condition: GOOD: Pre-Owned. Minimal signs of wear. Please refer to photos for more details. Brand: Reebok Model: Nano X2 Style Code: GZ6436 Department: Men Style: Sneaker Type: Athletic Color: Black Size: 12 Upper Material: Synthetic Pattern: Solid Theme: Sports Occasion: Casual Season: All Season Shoe Shaft Style: Low Top Closure: Lace Up Features: Comfort Breathable Performance/Activity: Running Jogging