The Skechers 55510 is the GO WALK 5 – Apprize, a lightweight men's walking sneaker designed for everyday comfort. The WW/INV appears to be a color/variant code associated with the 55510 style; the exact color should be confirmed from the shoe label. Skechers identifies style 55510 as GO WALK 5 – Apprize. 

• Brand: Skechers
• Style: GO WALK 5 – Apprize
• Style number: 55510
• Type: Men's walking/athletic sneaker
• Upper: Soft textured knit mesh with synthetic overlays
• Closure: Slip-on with stretch side panels
• Cushioning: ULTRA GO responsive cushioning
• Insole: Air Cooled Goga Mat cushioning
• Support: Comfort Pillar Technology
• Outsole: Dual-density outsole for stability and support
• Heel height: Approximately 1.5 inches (3.81 cm)
• Features: Lightweight, breathable, flexible and machine washable
• Heel: Quick-Fit Portal for easier putting on.