Prepare to train, or for your daily mission, with base layers engineered to help you perform better and keep you comfortable longer. Designed for active professionals, Flying Cross Pro Fit Base layers combine a superior fit with the advanced fabric performance of VaporCore. VaporCore features active particle technology that is embedded in the semi-compression stretch fabric to deliver a powerful, moisture management system that reacts to your body chemistry to perform when you need it.

• 37.5 active particle technology helps to regulate your core temperature
• Breathable, four-way stretch performance fabric
• Gusseted underarms