Gentleman’s Box Coupon: Save 20% On First Box! Last updated by Hello Subscription on January 25, 2019. Subscription Box Coupons & Deals / Gentleman's Box Coupons / Gentleman's Box Premium 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 their Classic and Premium Box! Get 20% off your first Classic or Premium Box when you use the coupon code HELLO20! See our reviews of The Gentleman’s Box Classic box and Premium Box to know more about this subscription! Are you getting The Gentleman’s Box Classic or Premium Box?