The Pro Shop claims 5 layers. It lists the following information on Super Pro tips:
"These medium/firm red coloured cue tips are made from 5 layers of Water Buffalo hide, and like many Buffalo tips, they are the perfect medium hardness for break cues and jump cues.
• Quantity: x2
• Material: Red Water Buffalo Hide
• Laminated: Yes
• Layers: 5 layers
• Suitability: Break / Jump / Masse
• Hardness: Medium Hard"
Hope this helps.