The lightest layer in the ECWCS system. This silk weight base layer is built for high-output activity in cool weather — running, rucking, or any time you're generating heat but still need protection from the cold. Ultra-thin jersey knit wicks sweat instantly while antimicrobial treatment keeps you fresh during extended wear.
Features
- ECWCS Level 1 — Lightest base layer in the military cold weather system
- Silk Weight Jersey Knit — Ultra-thin for minimal bulk under uniforms
- Moisture Wicking — Pulls sweat away from skin during high activity
- Antimicrobial Treatment — Stays fresh during multi-day wear
- Anti-Odor Technology — No stink even during extended field use
- Long Back Tail + Thumbholes — Stays tucked and sleeves lock in place under gloves
Frequently Asked Questions
Q: What's the difference between Level 1 and Level 2? A: Level 1 is silk weight (ultra-thin) for mild cold or high activity. Level 2 is mid-weight grid fleece for colder temps. Choose Level 1 when you'll be moving and generating body heat.
Q: When should I wear Level 1 vs Level 2? A: Level 1 for temps 40-60°F or high-exertion activities in colder weather. Level 2 for temps 20-40°F or lower activity levels where you need more insulation.
Q: Can I layer Level 1 under Level 2? A: Yes — in extreme cold, you can wear Level 1 as your first layer, Level 2 over it, then the Level 3 fleece and parka on top.
Complete Your Level 1 Base Layer
ECWCS Level 1 Base Layer Bottoms
- $19.95 - Matching lightweight bottoms to complete your base layer
Gen III ECWCS Level 1 Balaclava
- $8.95 - Lightweight head and neck protection for high-activity use