XGO Ranger School Approved Performance Underwear – Built for Extreme Conditions

Built for Extended Rucks. Proven in Ranger School.

Ranger School doesn’t allow shortcuts — and neither should your base layer.

The XGO Phase 1 Performance Boxer is Ranger School Approved because it meets the real demands of:

• Extended rucks
• High-heat training
• Multi-day field operations
• Limited gear rotations

Designed to reduce friction, manage sweat, and prevent hot spots, this is underwear built for real-world military conditions — not gym workouts.

Why It Performs in the Field

Constructed using XGO’s high-performance 100% Acclimate® Dry Polyester Eyelet Mesh, this boxer delivers:

✔ Lightweight, breathable performance
✔ Superior moisture management
✔ Incredible next-to-skin comfort
✔ Durable construction that won’t shrink
✔ Ag47® anti-microbial odor control
✔ Clean Seam® flatlock technology to prevent chafing
✔ No-roll waistband
✔ Full range of motion for unrestricted movement

This is an ideal foundational layer for high-exertion activity in warm-to-cool weather (40°–60°F).

Gear Specs

• Lightweight Performance Layer – Regular/Relaxed Fit
• Fabric: 100% Acclimate® Dry Polyester (Eyelet Mesh)
• Weight: 4.0 oz/sq yd (114 grams)
• UPF 35+ Sun Protection
• Berry Compliant
• 100% Made in USA 🇺🇸

Who This Is For

• Ranger School candidates
• Pre-Ranger students
• Infantry & SOF
• Tactical professionals
• Serious outdoor athletes