From an email promo, also advertised on the website.
This promotion entitles you to an extra 20% off your order on www.mountainwarehouse.com/nz, when you use the code EXTRA20 at checkout. It is available from 13/01/2024 to 15/01/2024 local time. This code cannot be used in conjunction with any other code or offer. Ski Packages are excluded from this offer. Subject to availability. Mountain Warehouse retains the right to withdraw this promotion at any time.
Promo is live already.
Also, says online only but if you go into store, they can price match their website for you