551st Infantry Regiment Long-Sleeve T-Shirt
Long-sleeve T-shirt — Next Level 3601
Athletic Fit – Runs a little small. Please see sizing guide.
Measurements are in inches. Compare with a well-fitting long-sleeve shirt you already own.
| Size | Chest width (laid flat) | Body length |
|---|---|---|
| S | 18.5" | 28" |
| M | 20" | 29" |
| L | 21.5" | 30" |
| XL | 23.5" | 31" |
| 2XL | 25.5" | 32" |
Lay the shirt flat on a level surface without stretching. Smooth out folds, then measure straight across from side seam to side seam, one inch below the armhole seams.
Measure body length from the high point of the shoulder beside the neck to the bottom hem.
Chest width is half the garment circumference. Doubling it gives the measurement around the garment, not a recommended body chest size.
Chest-width manufacturing tolerance: ±0.5 inch.
Honoring the 551st Infantry Regiment and its motto, “Aterrice y Ataque.” Redesignated in August 2026 under U.S. Army Western Hemisphere Command, the regiment develops jungle readiness and strengthens partnerships across the region. Its name carries forward the legacy of the original 551st Parachute Infantry Battalion—the GOYAs who trained in Panama, fought in southern France, and endured the Battle of the Bulge.
- 4.3-ounce, 100% combed ring-spun cotton jersey, 32 singles
- Self 3/8-inch shoulder-to-shoulder binding
- Crew neck
Athletic Fit – Runs a little small. Please see sizing guide.
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