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Men's Heated Baselayer Bottoms

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Men's Heated Baselayer Bottoms

$179.99
$179.99 $179.99
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Size

Men's Heated Baselayer Bottoms

Size
$179.99
Select a Size
Please select an available size. If Size is not selected, a prompt will appear when clicked.

Highlights-

  • 3 heating zones located at the left & right knees and lower back
  • Soft brushed stretch fabric that feels smooth against the skin
  • Wide high-rise waistband for a secure, supportive fit
  • Flatlock seam construction reduces friction and chafing
  • Ergonomic paneling follows the body's natural shape for a streamlined fit
  • Reflective logo print at the left knee for low-light visibility
  • Explore the Heated Baselayers Collection
  • Also available in Women's

  • 3-Year Limited Warranty on heating elements
  • 1-Year Limited Warranty on battery
  • 30-Day Return / Exchange
  • Insiders get free shipping $99+

  • Men's Heated Baselayer Bottoms
  • PD 5K Rechargeable Lithium-Ion Battery (5075 mAh, 7.4V)
  • Battery Charging Cable
  • User Manual (English, German, French)
View full details

Knee-Focused & Liner-Free Warmth

Built for lightweight warmth and cold-weather layering, the Men's Heated Baselayer Bottoms are a heated baselayer for the lower body, made for skiing, hiking, outdoor work, brisk walks or jogs, and everyday cold-weather wear — worn under pants or outer layers, or on their own for lightweight outdoor comfort. This bottom uses a liner-free construction to reduce bulk and create a softer, more flexible next-to-skin feel. A 3-zone heating system covers the knees and lower back, while the streamlined fit makes them easy to layer under pants without getting in the way of movement. Worn with the Qtr Zip Heated Baselayer Top, they complete a heated base layer set that helps create warmth where you need it most.

3 Heating Zones ( Left & Right Knees, Lower Back)

Feature Details

  • 3-zone heating across the knees and lower back delivering targeted warmth to areas that stay cold during extended outdoor activity.
  • Soft brushed stretch fabric that feels smooth against the skin, bringing comfortable warmth without unnecessary bulk.
  • A wide high-rise waistband creates a secure, supportive fit that stays comfortable through extended wear.
  • Flatlock seam construction reduces friction and chafing, making the base layer easier to wear for long periods.
  • Ergonomic paneling follows the body's natural shape for a streamlined, supportive fit that moves comfortably under outer layers.
  • A reflective logo print at the left knee adds subtle visibility when worn as an outer layer in low-light conditions.
  • Soft Stretch Fabric
  • Discreet Battery Pocket
  • Reflective Logo

Heating System

Heating Performance

  • Carbon fiber heating elements
  • 3 heating zones (left and right knees, and lower back)
  • 3 adjustable heating settings (high, medium, low)
  • 7.5 hours of heating (high for 2.5 hours, medium for 4.5 hours, and low for 7.5 hours)
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Battery Performance

  • 7.4V output for fast preheating
  • UL, CUL, CE, FCC, and RoHS certified for safety and quality
  • Fully charges in 2 hours with a 20W USB-C charger (not included)
  • Supports faster charging with 24W USB-C power delivery
  • USB-C charging cable is included
  • Capacity: 5075 mAh/7.4V/37.5Wh
  • Weight: 6.5 oz (185 g)

Materials & Care

Materials

Shell: 79% nylon, 21% spandex
Style# MBB-31

Fit and Construction

  • Fit: slim fit; ankle length
  • Weight: 21.1 oz (600 g) for size M
  • Pocket: one outside battery pocket

Care

  • Machine wash cold
  • Gentle cycle
  • Use a mesh laundry bag
  • Do not bleach
  • Line dry
  • Do not iron or dry clean

FAQs

  • How to choose my size?

    We recommend using the size guide (located next to the size options) on the product page to find your perfect size by comparing it to your body measurements. If you need further assistance, please contact us at support@ororowear.com

  • How are these heated baselayer bottoms designed to be worn?

    Designed as a close-fitting first layer, these bottoms fit comfortably under everyday pants, ski pants, workwear, or other cold-weather gear. The slim, low-bulk construction adds warmth while staying easy to layer and move in throughout the day.

  • Can I wear it on the plane or put it in carry-on bags?

    Sure, you can wear it on the plane. All ororo heated apparel is TSA-friendly. All ororo batteries are lithium batteries and you must keep them in your carry-on luggage.

  • Is the heated baselayer bottoms machine washable?

    Yes. It is machine washable. Be sure to follow the care instructions provided. Remove the battery before washing. Machine wash cold on a gentle cycle and use a mesh laundry bag. Do not bleach, iron, or dry clean.

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