Hyperboom SPL Muscleback | Black/Pink Sunglasses 30% stronger than conventional guards

30% stronger than conventional guards

fit and security

and a secure pocket

you can detach the sensor from its armband and holder and wear it anywhere under tight-fitting clothing

Socks designed and manufactured by HILLY

Hyperboom SPL Muscleback | Black/Pink Sunglasses 30% stronger than conventional guardsMake a statement in Boom logo prints. Celebrating the Speedo brand, this sporty Muscleback features flattering shaped side panel splices of our 'shattered' Boom logo print in intense shades of pink and black. The muscleback design and medium leg offer flexibility and freedom of movement, so you can rock your workout in comfort. Designed to be durable and better for the environment, the suit features our new ECO Endurance+ fabric which is 100% chlorine