Gymshark Recharge Tank - GreyREST. RELAX. RECHARGE. Slim Fit Drop armhole Crew neck Stepped straight hem with side splits Raised logo to chest 78% Polyester, 22% Viscose Model is 61 and wears size M Label Colour: Smokey Grey Whether its for reps or for rest, the Recharge Tank has the level of comfort you need. A classic tank cut made with a soft, comfort focussed material. And with the raised Gymshark logo on the chest, you can still be repping, even on rest day.