Nathan Insulated Soft Flask with Bite Top 18 ounce


Free Express Shipping
Estimated to arrive by

All orders ship FREE anywhere in the continental United States, with no minimum purchase required. Your free standard shipping will be automatically reflected in the shopping cart.

Most in-stock items ship from our warehouse within 24 hours and arrive in 1-5 business days or less, depending on location. If any of your items have a preorder or backorder status you will be notified.

Most items items in new, unworn condition can be returned up to 30 days from the original purchase date for a refund or exchange.

Learn more about returns

We’re here to help you find your perfect fit!

Call (800) 421-0551 or email us

Monday - Friday 6am - 6pm (PST)

  • Product Description
    • Insulated properties keep fluids cooler 38% longer than non-insulated soft flasks
    • Bite valve keeps liquid from escaping
    • Works great with all NATHAN hydration vests
    • Capacity: 18 ounce/535 mL
  • Reviews
  • You Might Also Like