HM USA+Canadian online stores have 25% off gaming chairs and office chairs with an extra 5% off using discount code SAVE5 which works for office and gaming chairs only. This means 30% off for office+gaming chairs (or accurately 29% off according to the cart checkout page). However, no free delivery though even with the above save5 code.

This 25% discount also applies to other non-chair HM products e.g Eames lounge chair and ottoman etc.