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4.0 Men's Beast Performance Pant

$65.00 W9317-010S
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If you are looking for ultra-warmth, the Beast is for you! This full-length pant has a smooth face on the outside of the top for easy layering and brushed ultra-high pile sherpa fleece on the inside to trap air. Works great with the Beast Half Zip.


  • Thermoregulation Technology keep you warm and dry
  • Heavy-duty Sherpa inside for maximum warmth
  • UPF Rating 50+
  • All flat seam construction and rib gusset to prevent chafing
  • Comfort waistband for a great fit


  • Climasense fiber fusion is designed to regulate your optimal temperature
  • Thermoregulation technology provides comfort through a wide range of temperatures
  • UPF rated for sun protection
  • Odor Control neutralizes sweat and odor
  • Moisture Management moves moisture from the skin to keep you warm and dry


  • Body: 100% Polyester
  • Rib: 90% Polyester, 10% Spandex

Customer Reviews

Based on 13 reviews
Terence Schild
Exchanged for something else

Sent these back for an exchange and have yet to get the pants that I exchanged for been like 2 weeks

Julian Fodor
Awesome Base layers

I previously had a pair of heavy weight terramar base layers. They either shrank or I expanded. I will go with they shrank. I purchased the 4.0 bottoms and the 4.0 half zip. I was hunting in near zero degree weather including the wind chill. They kept me very warm. The wind didn't get through either. I wish I had bought these sooner. I also purchased the Terramar 2.0 top and bottom. They are much warmer than my regular base layer. I love the way they breathe and are moisture wicking. These are great products and I will definitely purchase more.

james maxwell
Warmer than warm

Hard core warmth in a comfortable package, first class product

Barry Driscoll
Good heavy bottoms

Love the weight & warmth. True to size. Not very stretchy. Top back could stand to be cut higher.

Jacqueline Corley

I purchased The Beast (4.0) for my husband for layering. It is super warm, true to size and works perfect for layering.