REI Garage offers the The North Face Men's Ballistic Pants in Grey or Black for $31.73. Opt for in-store pickup to avoid the $5.99 shipping charge. That's tied with our February mention as $33 off list and the lowest price we could find. They're available in sizes XL and XXL only.
Of note, members can take an extra 20% off via coupon code "MEMLOVE20".