Speedo Adult Biofuse 2.0 Goggles Our Biofuse Goggle just got better. Introducing the new Biofuse 2.0, still with our best-selling Speedo Biofuse technology, it now also features ground-breaking biosynthetic materials, a brand-new patented push button mechanism and super-soft seals with a new groove design, offering the same best comfort and fit - but better. Material Content: Other materials 100 % Super-soft seals with a new groove design, offering the same best selling fit. Stylish low-profile strap with traction gears for a secure & comfortable fit.