Nike Vapor Energy Training Backpack white-head-with-white-mesh-and-platinum-shaft Performance SL2 Alloy shaft is

Performance SL2 Alloy shaft is lighter

Top string is also used as bottom string and as nylon shooting strings

4F = Face-Off

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Features: High-performance Scandium allows for an incredibly lightweight shaft while delivering uncanny strength and durability

Nike Vapor Energy Training Backpack white-head-with-white-mesh-and-platinum-shaft Performance SL2 Alloy shaft isCOMFORT AND VERSATILITY The Nike Vapor Energy Training Backpack offers diverse storage options and comfortable carrying with multiple specialized compartments and adjustable Max Air shoulder straps. Benefits: Padded laptop compartment fits up to a 15 inch laptop Dual zip main compartment for secure, spacious storage Adjustable Max Air straps for lightweight shock absorption Wet dry compartment separates your clean and dirty gear Side sleeves store