Teva - Neutron II (Team Azul) - Women's: An update to the original Neutron, but designed to be more secure and easier to use. The Neutron II is very low profile, self-bailing and super sticky. Adjustable Liquid Frame technology uses a patented fit system that surrounds and embraces the foot for a secure fit. It's a soft, yet supportive system that minimizes excessive foot movement over mixed terrain. Also, it provides a snug and personalized fit for both high and low volume insteps. 2mm neoprene and synthetic upper. Multiple drainage ports. 3D wrap-over outsole. Low profile Spider Rubber outsole is Teva's most versatile rubber compound that successfully blends high friction and good durability. A non-marking rubber that performs exceptionally well on wet and dry terrain. Park & Play Traction System is designed to provide maximum surface contact in the lowest profile possible. 2mm lugs balance traction and minimalism.