FREE Nikwax Tech Wash or Polar Proof Sample by Mail February 24th, 2015 By Nicole Leave a Comment This post may contain affiliate links, which means I will make a small commission if you click and make a purchase. FREE Nikwax Tech Wash or Polar Proof Sample by Mail Hurry and take this quiz to get a FREE Nikwax Tech Wash or Polar Proof sample. (You must answer all the questions correctly to quilify, but you can take the quiz as many times as you want). While supplies last. Looking for more FREE Samples by Mail? Click here. Thanks, The Freebie Blogger! Never miss another deal! Subscribe to our FREE email newsletter or follow us on Facebook. Thanks for stopping by!