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509 FZN Merino Pants 

FZN stands for Five Zero Nine, not frozen, and that’s exactly how you’ll feel in the 509 FZN Merino Pant. This base layer pant provides versatile midweight warmth with a high-performance Alpine Merino wool blend that’s naturally breathable, fast-drying, and odor-repellent—all without the itch. It’s far superior to conventional fabrics and compared to grandpa’s wool knickers, it’s like upgrading your sled from his 1978 Panther to a PRO-RMK.

Features:

  • Materials: Alpine Merino - 250 GSM 20 micron wool, blended with 40% Bamboo Viscose, and 10% nylon for structure and durability  
  • Warmth: LVL [2]
Product Style RevZilla Item # Store Sku MFR. Product # Availability
Product Style Black / XS RevZilla Item #1730872 Store Sku MFR. Product #F05000400-110-001 AvailabilityAvailable: Ships in 3-5 business days
Product Style Black / SM RevZilla Item #1730873 Store Sku MFR. Product #F05000400-120-001 AvailabilityAvailable: Ships in 3-5 business days
Product Style Black / MD RevZilla Item #1730874 Store Sku MFR. Product #F05000400-130-001 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / LG RevZilla Item #1730875 Store Sku MFR. Product #F05000400-140-001 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / XL RevZilla Item #1730876 Store Sku MFR. Product #F05000400-150-001 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / 2XL RevZilla Item #1730877 Store Sku MFR. Product #F05000400-160-001 AvailabilityIn Stock: Ships within 24 hours
Product Style Black / 3XL RevZilla Item #1730878 Store Sku MFR. Product #F05000400-170-001 AvailabilityAvailable: Ships in 3-5 business days

509 Men's Base Layer Pant Sizing

Size Waist (in) Inseam (in)
XS 30 29
SM 32 30
MD 34 31
LG 36 32
XL 38 33
2XL 40 34
3XL 42 34

 

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.


How to Measure

  • W Waist
    Measure around your natural waistline, around the top of the hip bones, inline with the navel while keeping the measuring tape parallel to the ground.
  • I Inseam
    Measure from the highest point of your crotch down to your ankle, along your inner leg.
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