Herman Miller Aeron Chair: $669
HiveModern has Herman Miller Aeron Chair (various colors) on sale for $743.75 – Extra 10% Off when you apply unique promo code (provided w/ Newsletter Signup, see note below) = $669.38 (base model only without arms). Free shipping.
Note: Task Chair does not come with Arms by Default, you will need to upgrade for an additional $102+ to have them. To receive unique promo code, you need to open link in incognito mode and sign up for Newsletter. You will receive code via email (should arrive instantly). You will need to create account (using same email used for newsletter signup) to apply the promo code.