Free Shipping on most orders over $35!
Added to Cart
    You have items in your cart
    You have 1 item in your cart

    Product Specifications


    4L Capacity


    1 Vest

    Item #


    Style #


    US sales only.

    Nathan VaporKrar 4L 2.0 Vest

    Created in collaboration with champion ultra runner Rob Krar, the Nathan VaporKrar 4L 2.0 Vest is the new, improved version of a runner's favorite. This racing vest is compatible with a 1.5L bladder to keep you hydrated during longer events. Front stash pockets and a zippered water-resistant chest and back pockets offer security for on-the-go nutrition, a smartphones, and other essentials. A back kangaroo pocket is perfect for storing extra flasks, clothing items, or other small necessities. The internal CompressionFit system tightens the vest against the back for enhanced stability.

    • Super-breathable materials allow for maximum comfort.
    • Features two easy-access front bottle pockets.
    • Side stretch mesh pockets fit most smartphones.
    • Soft-touch, no-chafe elastic perimeter binding.
    • Reflectivity provides enhanced visibility.
    • Includes two 20oz soft flasks with extended tubes.


    X-Small: 30-32" chest

    Small:33-35" chest

    Medium: 36-38" chest

    Large: 39-41" chest

    XLarge: 42-44" chest

    *Measurements refer to body size, not garment size.