Gainz Box June 2018 Spoiler #2 + Coupon! Posted by Hello Subscription on June 7, 2018. Subscription Box Spoilers / Gainz Box Spoilers Hello Subscription may earn compensation via links in this post. Read the full disclosure Save for Later Notification Gain[z] Box released the second spoilers of the June 2018 Gainz box! DEAL: Get 15% off your June box with coupon code GZ15. Each box includes: RepCord Bracelet! Feed Me Fight Me Performance Shorts! Are you getting Gain[z] box this month?