Gentleman’s Box Coupon: Get 30% Off! Posted by Hello Subscription on September 20, 2019. 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! Get 30% off your first box when you use the coupon code STYLE30! See our Gentleman’s Box reviews to find out more about this subscription! Are you getting The Gentleman’s Box Classic Box?