DRIFIRE FR Control Long Underwear - U52 KSR
DRIFIRE FR Control Long Underwear - U52 KSR
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DRIFIRE FR Control Long Underwear - U52_KSR_ _
The DRIFIRE FR Control long underwear keeps the wearer cooler on hot days and warmer on cool days with lightweight breathable fabric, heat stress reduction and unsurpassed moisture-wicking and drying rate. Inherently FR, this stretch fabric proactively regulates skin temperature (+/- 3 degrees) and reduces perspiration by as much as 34%. The DRIFIRE FR Control long underwear features lightweight stretch fabric and proactively regulates skin temperature. The heat stress reduction, moisture wicking and odor control technology maintains a comfortable work environment so you can focus on the job at hand.
| Product Code | U52_KSR_ _ |
| Available Sizes | SM-3X |
| Color | Navy, Desert Sand |
| CAT Level | CAT 1 |
| Arc Rating | 4 cal/cm ² |
| Arc Rating (Number) | 4 |
| Brand | DRIFIRE |
| Product Vertical | FR Clothing |
| Country of Origin | USA |
| Fabric Code | FK/JK |
| Fabric Content | 68% Modacrylic, 29% Viscose, 3% Spandex |
| Fabric Weight | 5.5 oz. |
| Fabric/Material | 5.5 oz. FR CONTROL 2.0 |
| Product Type | Base Layers |
| Web Country of Origin | Made in the USA |
Features:
- Proactively regulates skin temperature (+/- 3 degrees)
- Reduces perspiration by as much as 34%
- Keeps the wearer cooler on hot days, warmer on cool days
- Heat stress reduction
- Odor control technology
- Lightweight, breathable fabric
- Unsurpassed moisture wicking and drying rate
- Inherently flame resistant, FR protection will not wash/wear out
- More stretch for a better fit
Standards:
- Compliant to NFPA 70E for Arc Flash
- Compliant to ASTM F1506 for Arc Flash
- Compliant to CSA Z462 for Arc Flash (Canada)
- Complies with OSHA 1910.269
Industries:
- Utilities
- Manufacturing
- Electrical Contractors
Product Care:
- READ THE GARMENT LABEL AND LAUNDER PER INSTRUCTIONS ON GARMENT LABEL.
- DO NOT use chlorine bleach or detergents containing bleach. DO NOT use fabric softeners. DO NOT iron. DO NOT dry clean.
- Wash/Laundering Instructions: Machine wash warm. Tumble dry low.
- Wash according to the instructions above to remove any contaminants in order to maintain fabric performance when garment becomes soiled with dirt, greases, oils, etc.
- If contaminants cannot be removed after laundering, it is best to discontinue use of garment.
| Product Type | FR/ARC/Welding Clothing |
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Shipping
We Ship Internationally - We can ship to virtually any address in the world, with some restrictions on certain products.
Standard Delivery: Ground shipping typically delivers in approximately 5 business days from our Columbus, OH warehouse.
Expedited Options Available:
- Priority and Expedited handling speeds up processing
- Overnight shipping available (guaranteed) - must order by phone before 12pm EST M-F
- Some items ship "Manufacturer Direct" and cannot be expedited
Important: Inspect your delivery before signing! Note any damage on the shipping document.
Returns Policy
30-Day Return Window: Most new, unopened items can be returned within 30 days for a full refund.
Non-Returnable Items:
- Made-to-order fall protection products
- Used vacuums, respirators, gas monitors, or air scrubbers
- Calibration gas (hazardous material)
- PAPR and specialty respiratory items (non-stock)
Restocking Fee: 30% restocking fee or shipping costs apply if return is due to buyer error.
Refund Timeline: Expect refunds within 4 weeks, though many are processed faster.

