ONboard Underseat Sling

Currently out of stock.

Avoid fees – these bags fly free!


Air Travel is changing, and space on aircraft is limited. That's why we created the ONboard™ Underseat Collection. Each bag is integrated with User Experience Design to make your trip easier and more comfortable. Also great for everyday use, with loads of convenience features and comfort.


ONboard™ bags fit under most major airline seats and in overhead compartments, and are engineered to provide easy forward facing access to all your essentials.  840D ballistic nylon bottoms take on the toughest conditions and protect against abrasion.


  • Multiple pockets and compartments for maximum organization
  • DATABLOCK™ RFID-Blocking pocket to keep personal information private
  • Padded pocket fits laptops up to 14”
  • Hidden front pocket with magnetic closure for quick access
  • Removable accessory pocket
  • Side carry handle
  • Comfortable, contoured, padded air-mesh strap
  • Convenient strap slips over rolling luggage handle for easy transport
  • 11.8 x 16" x 4.5“


Shipping Policy:
All orders to the United States ship free! We will process your order to ship within 3 business days. Please note that we do not ship to P.O. boxes. Thank you for understanding.
Returns Policy:
Lewis N. Clark® Products
Lewis N. Clark® products are warranted against defects in workmanship and materials. This warranty does not apply to normal wear and tear, unreasonable use or damage caused by accident, abuse or failure to use the product properly. It also does not apply to lost or stolen items. Warranty begins on date of original purchase.

All Other Items: 1-Year Warranty
If you purchased the item on
Please log into your account and click on “Completed Orders.” From there click “Return Item(s)” and fill out the applicable fields. If you received the incorrect item, or the item is defective, we will replace the item. Please note that if the item needs to be returned, you will need to pay the return shipping charges.

If you purchased the item outside of
Please note that stores are not authorized to provide service under this warranty. During the warranty period, we will replace any product that is defective without charge. Please email us at and detail the location that the item was purchased, date of purchase, issue with the item, as well as any other information you can provide. Include pictures if applicable.

You can also call us at 312-455-0500 and we will provide you with further instruction.

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