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100% Merino Wool Union Suit – Midweight

This product is currently out of stock and unavailable.


The Union Suit is a historical undergarment that has been around since 1868. The Union Suit was first created in Utica, NY. Our Union Suit features a drawstring waist, plastic buttons on the top half, and flat snaps on the bottom half.

  • Fiber Content: 100% Merino Wool
  • Knit: 235 g/m2 Midweight Interlock Knit
  • Microns: 18.5 Micron Fibers
  • UPF Rating: 50+
  • Total Easy Care: Machine Wash and Dry
  • Wool Source: Australia
  • Imported.
  • Button-Up: Buttons up the front torso, with snaps on the lower half, extra button provided on care label
  • Rear Opening: Low profile, snap opening
  • Neckline: Henley Y-Neck
  • Thumbholes: Allow for easy layering and added hand warmth
  • Waistband: Adjustable drawcord
  • Ribbed Ankle Cuffs: Keep in place and allow for easy layering
  • Tagless Label: No Itchy Neck Tags
  • Flat Lock Seams: Prevents Chafing
  • Layer Type: Base Layer, Mid Layer
  • Fit Type: Regular – Standard fit with a little bit of room to breathe, but not too baggy
  • Model Features: The model in true red is 5’10 / 150 lbs wearing a medium
  • Runs True to Size – Our previous production ran large but has since been corrected to be true to size. For fit advice, we recommend contacting our customer service to get the right fit, since we have some mixed inventory.
  • Weight: Size Large = 21.6 oz. (612 grams)
  • Style #: 4920
  • Ideal Seasons: Spring, Fall, Winter
  • Activities: Everyday Wear, Hiking, Camping, Biking, Running, Fishing, Hunting, Snowsports
  • Temperature Recommendations: 30°F to 0°F while active, 30°F to 60°F while inactive
  • Turn Inside Out
  • Machine Wash Cold: Gentle cycle with like colors
  • Detergent: Mild or wool-specific
  • Tumble Dry: Low heat
  • Storage: Place in an airtight container when not in use for long periods of time
  • Do NOT Use: Fabric softener or bleach!


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