XGO's Phase 1 Lightweight Clothing, our lightest weight option designed for ultimate comfort and performance. This collection includes thermal undergarments and boxer briefs, available in both Flame Resistant (FR) and performance materials. Shop a variety of styles, from long sleeves to short sleeves, crafted for durability and protection, all proudly made in the USA.

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XGO Lightweight High Performance T-Shirt. Lightweight Shirts. High Performance T-Shirt. Performance T-Shirt. Moisture Wicking. Anti-Odor. Anti-Microbial. UPF (Sun Protection) Rating 35+. 100% USA-Made! 100% Made In The USA! Berry Compliant!

Lightweight Performance T-Shirt (PH1)
$ 43.00
$ 43.00

Lightweight FR T-Shirt (FR1)
$ 83.00
$ 83.00

Lightweight FR Cooling T-Shirt (FR1)
$ 94.00
$ 94.00

Lightweight Performance LS Crew (PH1)
$ 49.00
$ 49.00

Lightweight FR LS Crew (FR1)
$ 90.00
$ 90.00

Lightweight Performance Boxer Brief (PH1)
$ 42.00
$ 42.00

Lightweight FR Boxer Brief (FR1)
$ 62.00
$ 62.00

Lightweight Performance Cooling Mesh Boxer Brief (PH1)
$ 46.00
$ 46.00

Lightweight Performance Thermal Pants (PH1)
$ 47.00
$ 47.00

Lightweight FR Thermal Pants (FR1)
$ 88.00
$ 88.00

Lightweight Performance Neck Gaiter (PH1)
$ 18.00
$ 18.00

Lightweight FR Neck Gaiter (FR1)
$ 26.00
$ 26.00
Sale
XGO Lightweight High Performance T-Shirt. Lightweight Shirts. High Performance T-Shirt. Performance T-Shirt. Moisture Wicking. Anti-Odor. Anti-Microbial. UPF (Sun Protection) Rating 35+. 100% USA-Made! 100% Made In The USA! Berry Compliant!

Clearance: Lightweight Performance T-Shirt (PH1) - OD Green
$ 11.00
$ 11.00
$ 41.00
Sale

Clearance: Lightweight FR T-Shirt (FR1) - Prior Year
$ 21.00
$ 21.00
$ 83.00