Get FREE Nikwax Polar Proof and Cotton Wash Samples!

You want to keep warm in winter and a fleece garment provides lightweight but effective insulation, especially when outdoors. When wet, fleece can absorb water and gain weight, reducing its insulating abilities. Polar Proof is a wash-in waterproofer, designed specifically for fleece items. Easy-to-use in your washing machine, it leaves a water repellent treatment on the fibres! To get a FREE Nikwax Proof Sample – you have to answer the questions correct, but if you don’t that’s okay, you can change your answers if you get them wrong and try again until you get them right!
Verified active: January 5, 2017 Sample availability and delivery is subject to each individual company's terms, conditions and availability at their discretion.
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Fine Print You Shouldn’t Skip
Valid only on app, website, or in-Shack kiosk orders
Not valid at drive-thru or on third-party delivery apps
$10 minimum purchase required before the free burger; fees and taxes excluded
Limit one free burger per order
Offer available at participating U.S. locations only; airports, stadiums, and select venues excluded
Offer runs through May 31
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