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Stay warm and dry in the harshest conditions with 509’s Active Layering System featuring Cold Armor technology. Pairing 509’s base and mid layers with 509’s outerwear creates a high-performance layering system that works together to keep you comfortable no matter what. The system starts with our lightest base layer, the 509 FZN LVL 1 Shirt—a close fitting next-to-skin layer designed to actively wick away heat-robbing moisture so you stay dry and comfortable all day long.
Key Features
- LVL [1] - 509's lightest next to skin base layer
- Lightweight, moisture-wicking polyester technical material
- Stylish full body sublimation print
- Comfortable brushed interior fabric
- Want to know what base layers are best for you? → Learn More
- Sized to be fitted. Size up for loose fit
- WARNING for California Residents
Specs
- Materials: Cold Armor™ Polyester
- Warmth: LVL [1]
Size Guide
You're going to LOVE the fit. Try it on and experience our perfect fit. If you don't love it, send it back in new and unused condition within 30 days for an exchange or full refund*. Risk free.
Scroll to the right to see more sizes
| X-Small | Small | Medium | Large | X-Large | 2X-Large | 3X-Large | |
|
Men's Chest |
34 - 36 |
36 - 38 |
39 - 41 |
42 - 44 |
45 - 47 |
48 - 50 |
52 - 54 |
|
Sleeve |
27 |
28 |
30 |
32 |
34 |
36 |
36 |
|
Waist |
30 |
32 |
34 |
36 |
38 |
40 |
42 |
|
Inseam |
29 |
30 |
31 |
32 |
33 |
34 |
34 |
|
Women's Chest |
30 |
32 |
34 |
36 |
38 |
40 |
n/a |
|
Sleeve |
24 |
26 |
28 |
30 |
32 |
34 |
n/a |
|
Waist |
28 |
30 |
32 |
34 |
36 |
38 |
n/a |
|
Inseam |
29 |
30 |
32 |
34 |
36 |
38 |
n/a |
