ABV® for Spectrum FFM Prisma Silicone Crystal a new

Silicone Crystal a new

Extra-flat profile (maximum height 14 mm) with a completely rounded design

Ideal for keeping your feet warm underwater and preventing any abrasion caused by extensive training

Shaking the device moves the ball bearing

Flatlock stitching ensures structural durability while maintaining a low-profile seam for reduced irritation during prolonged activity

ABV® for Spectrum FFM Prisma Silicone Crystal a newDescription The most anticipated accessory for the Spectrum Full Face Mask is finally here! The Ambient Breathing Valve (ABV) allows a diver to breathe ambient air while at the surface, thus conserving tank air! This is a great addition to your Spectrum mask.