Just pay shipping on trial pair
During trial, minimum order of three more pairs to access $25/pair Lifetime Price. Order nine more to get trial pair free. You can also Buy 2 get 1 free at retail ($44/pair) or keep trial pair at retail.
Trial pair is black. First order is a mix of black and grey. Cancel or order more during 7 day trial in your account. If you cancel, donate the trial pair to prevent charge at retail price within 15 days from trial end. Your account is pre-set to nine more (plus free trial pair) after the trial, and then three more every four months. Change order or cancel before trial end to prevent charges. All charges are final.