Gumshield Sisu Aero 1.6: Royal Blue Size:M Following extensive ongoing research consultation

Following extensive ongoing research consultation with the world's finest athletes sporting institutes

XLY - 34" Chest

Chest sizes are shown in inches

Medium - 44cm

but most significantly it is designed so that it will stand up right

Gumshield Sisu Aero 1.6: Royal Blue Size:M Following extensive ongoing research consultationThe SISU Aero Mouthguard is the latest evolution in mouthguard engineering by the makers of SISU Guard. Simply put, it is the most powerful mouthguard weve ever built. With its unmatched quality and functionality, SISU NextGen was designed with the athlete in mind, and its unique new features are hyper focused on additional protection and comfort. The Aero is made from a high tech thermoplastic material that is 30% stronger and has 8x greater tensile