Grenade’s limited edition item that was initially unveiled last Friday has found it’s way into an online store. When the brand first announced the bright red AT4 matching tee, they gave away very few details about it’s availability, instructing fans to ask about the product at their local stockist. While that didn’t answer the question of if the shirt was going to be on sale or only be given away with supplement purchases, the UK Grenade retailer Tropicana Fitness have got answers. Fans can in fact now purchase the AT4 Arm Yourself tee from the store for the price of £18.49, or actually purchase a bottle of the product that inspired the shirt for £28.95, and get it free. Regardless of which way you go about getting Grenade’s limited edition piece, it appears that there is just the one size to choose from in large.