These heavy-warmth thermal bottoms include our Timberland PRO FLEX technology maximum mobility features so you can bend, reach, and stretch without restriction, fabric that offers warmth without bulk, and flat-lock seams so they won't bind when worn under your favorite work pants. Our WickWork technology, in combination with lighter-warmth lower leg panels and crotch, provides maximum breathability, comfort, moisture wicking, and odor resistance so you'll stay dry and comfortable during active work days.


• 93% smooth-faced, channeled-back polyester/7% elastane fleece main fabric with 96% polyester/4% elastane panels (7.5 oz./212.6g)
• Original Fit
• Smooth-faced channeled back fleece for maximum warmth without bulk
• Higher-warmth fabric in body and lighter-warmth fabric in lower leg panels and crotch for maximum breathability
• Superior wicking and odor resistance
• Hi-tech breathable fabrics
• Flat-lock seams
• Wide logo waistband elastic
• Imported