Gentleman’s Box Coupon: Save 50% On First Classic Box! Posted by Hello Subscription on March 14, 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 50% off your first Classic Box when you use the coupon code SAVE50! Ends 3/16. *Valid on new subscriptions only / Expires March 16th, 2019* Are you getting The Gentleman’s Box Classic Box?