Blauer FlexRS™ Insulated Long Sleeve Base Shirt (8376)
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Blauer FlexRS™ Insulated Long Sleeve Base Shirt (8376)
Designed for cold-weather patrols, the FlexRS™ Insulated Base Shirt combines the insulating fleece interior of the FlexHeat Base Shirt now with a durable and low-profile FlexRS™ ripstop exterior. Perfect for keeping warm when worn on its own or comfortable when paired under your LBV.

KEY FEATURES:
- Water-resistant, bonded-fleece on sleeves, collar, shoulders and yoke
- Low-profile FlexRS™ ripstop exterior matches FlexRS™ uniform line
- Breathable fleece lining on torso for wearing under LBV’s
- 2 Handwarmer pockets on upper chest
- Convertible sport collar
- 3 button center front placket with mic tab
- Double pen pocket on chest
Your favorite fabric now meets the comfort of perfect cold weather insulation. Built for tactical readiness in cold, unpredictable weather the FlexRS™ Insulated Base Shirt features water-repellant bonded fleece on the sleeves, shoulders and yoke; and a soft, breathable fleece lining on the torso, locking in warmth where you need it most while remaining breathable under compatible Blauer Armorskin® Vest Carriers. With a low-profile FlexRS ripstop exterior, this insulated base shirt matches your favorite FlexRS uniform staples and colors, offering rugged durability and easy wash-and-wear care. Two chest handwarmer pockets, a double pen pocket, mic tab, and a 3-button center placket provide on-duty practicality, keeping essentials secure and hands warm during long shifts. Designed as a weather-ready layer, this fleece Winter Base Shirt is a perfect alternative to bulky jackets that don’t fit comfortably under your vest and cover equipment when worn on the outside. Whether worn under armor or solo, FlexRS™ Insulated delivers tactical warmth, mobility, and protection, making it an essential professional layer for cold-weather patrols.
Material
Waterproof
Warmth
Windproofing
Moisture Management
Odor Protection
UV Protection
Pockets
Care

Men’s Shirts
| Size | XS | S | M | L | XL | 2XL | 3XL | 4XL |
|---|---|---|---|---|---|---|---|---|
| Chest | 32-34 | 36-38 | 40-42 | 44-46 | 48-50 | 52-54 | 56-58 | 60-62 |
| Neck | 13-13.5 | 14-14.5 | 15-15.5 | 16-16.5 | 17-17.5 | 18-18.5 | 19-19.5 | 20-20.5 |
Mens Shirt Sleeve
| Length | 31 | 33 | 35 | 37 | 39 |
|---|---|---|---|---|---|
| Sleeve | 30-31 | 32-33 | 34-35 | 36-37 | 38-39 |
Fit Chart
| Compression | Athletic | Comfort |
|---|
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Heat Factor II
Advanced Cold Weather Protection - Go Extreme with Additional Layering Systems -

Moisture Management
Absorbs and Wicks Moisture Away from Skin for Quick Drying -

Mechanical Stretch
Fabric provides controlled flexibility for greater comfort