Colourblock 2.0 Muscleback - Black/Red/Blue instk-w-size-uk-size-14 the ECO Endurance+ fabric is

the ECO Endurance+ fabric is made from 50% recycled materials whilst still boasting 100% chlorine resistance and a quick dry

Featuring an open back

making them particularly well suited for building muscle

Polycarbonate split lens

UPF50+ UV protection

Colourblock 2.0 Muscleback - Black/Red/Blue instk-w-size-uk-size-14 the ECO Endurance+ fabric isThe Colourblock 2. 0 Muscleback from Speedo, brings a pop of colour block style to your swimming sessions. With a modest back and an attractive colour block side panel design in red and blue, this sporty black Muscleback is perfect for regular pool sessions and offers flexibility and freedom of movement so you can swim in comfort. Ideal for regular pool sessions, the EnduraFlex fabric offers higher chlorine resistance than standard swimwear fabrics