Gentleman’s Box Father’s Day Coupon: Save 30% On Classic Box Gift Subscriptions! Posted by Hello Subscription on May 31, 2019. Father's Day Deals & Gift Boxes / Subscription Box Coupons & Deals / Gentleman's Box Coupons Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification The Gentleman’s Box has a new sale for the Classic Box this Father’s Day! Get 30% off on all Classic Box gift subscriptions when you use the coupon code CLASSICDAD! NOTE: Must order by 6/10 for guaranteed Father’s Day delivery. Are you getting The Gentleman’s Box Classic Box?