For those brave enough to enter the squared circle. The Stevenson Tank features segmented panels to allow for full range of motion and laser cut perforations for optimal ventilation. Impossibly light and engineered with SMRT-TEC technology enabling you to stay cool while you handle your business. High-Quality Stretch Interlock Segmented Panels Laser Cut Perforations 3D BOXRAW injection print Competition Tank 90% Polyester, 10% Elastane Machine wash inside out & cold Iron inside out & do not tumble dry