Nathan Pinnacle 4L Vest | Black/Lime | Small

When every second counts on the trail, you need a hydration system that moves with you, not against you. The Pinnacle 4L Hydration Race Vest delivers race-day performance with a featherlight design that's 20% lighter than competing models, engineered specifically for runners and trail athletes who demand minimal weight without sacrificing storage or comfort.

• 20% lighter construction reduces fatigue over long distances and extended trail running
• 4L storage capacity with 12 intelligently designed exterior pockets for nutrition, gear, and essentials
• Dual 20oz HydraPak soft flasks with ExoSpine stabilizers included for secure, easy hydration
• Contoured Chimney back panel with tapered mesh creates maximum airflow and moisture-wicking action
• Kangaroo pockets include side-entry access pocket plus vertical storage for trekking poles and larger items
• Water-resistant chest pockets protect phone and small items; whistle-equipped pill pocket for safety
• Apparel-like fit with longer back design distributes weight evenly for all-day comfort
• Adjustable sternum straps allow personalized fit customization for any body type

This listing includes the Black/Lime color option in Large size. The vest is also available in additional sizes (S, M, XL) and color variants to match your preference.

Ideal for competitive trail runners, ultramarathoners, and adventure athletes who refuse to compromise on weight, breathability, or functionality during their most demanding efforts.

Questions about the Nathan Pinnacle 4L Vest?

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