Xgo Longworth Industries

XGO (pronounced X-G-O) is a division of Longworth Industries. Longworth Industries has been in business for over 30 years producing technical base layer products under the Polarmax and XGO brand names. In 2004, Polarmax was awarded the first contract with the US Army for moisture wicking polyester t-shirts.

XGO doesn't just make base layers, we develop systems to help focus more on the mission at that, be it in theater or the field, and less on your gear. One of the first brands to introduce an engineered system of next-to-skin layers designed to be worn as standalone pieces or as part of a layering system, we took into account various environments and barriers that could eliminate comfort and attention.

Use the chart below to determine the best sizing for you. If you think you could be in-between two sizes we recommend: for a more athletic/tighter fit, ordering the smaller size; for a more relaxed/looser fit, order the larger size. For those who have boarder chest with a smaller waist, we recommend ordering the size based upon your chest measurements.

We will get back to you as quickly as possible. You can also call us toll free at (800) 552-8585. We'd be happy to send you a copy of our catalog. Simply go to the Contact Information page, provide some basic information, and then select the 'Catalog Request' option. Merchandise returns are handled through our Customer Service department.

XGO takes pride in our products and will stand behind their quality. We will replace any piece that's performance in the field has been compromised by a manufacturer's defect for the practical lifespan of the garment (25+ home laundering). If your XGO product is defective, please request a "Return Authorization Number" below or contact us at (800) 552-8585 or info@proxgo.com.