XGO Phase 2 Performance Zip Mock – Midweight Sleep Shirt

For years the XGO Phase 4 Tech Fleece Zip Mock has been known as the go-to heavyweight sleep shirt for the USAF and now we are happy to announce a midweight version. The XGO Phase 2 Midweight Waffle Zip Mock is a great midweight, 5.5 oz, sleep shirt offering for our USAF service men and women. Constructed out of 100% Acclimate® Dry Polyester – Waffle-Knit Construction it offers superior Acclimate® Dry moisture management (wicking/drying), patented Ag47® anti-microbial protection, rolled shoulders and under arm gussets increase mobility with reduced Irritation, accessible elastic thumb loops for added layering support when needed,  extra body length ensures shirt stays tucked in when situation demands it and proudly 100% USA Made & Berry Compliant!!! Want to learn more, head over to

3 Responses to “XGO Phase 2 Performance Zip Mock – Midweight Sleep Shirt”

  1. Scott Slack says:

    Sleep shirt? I haven’t been in for long, but I’ve never heard of a sleep shirt in the Air Force. Is this something that depends on your career field?

    • GANDIS says:

      AFI 36-2903 Sleep Shirt. The sleep shirt may be worn under the ABU coat. The sleep shirt will not be worn as an outer garment. The sleep shirt will not be visible under the ABU coat except at the neck. The sleep shirt will be a solid color; colors authorized are green or sand.

      Know your regs.

    • Philip says:

      You probably won’t be issued one unless it’s part of a deployment gear ensemble, but is on hand for purchase at clothing sales. Good piece of gear to have.