What is the difference between RESTUBE BEACH, ACTIVE and EXTREME?

RESTUBE BEACH has a buoyancy of 50N and is ideal for families, children and seniors for leisure activities on and in the water. It is also suitable for stand up paddlers in swimwear in the summer - wherever there are no swimming aid regulations. RESTUBE ACTIVE has 75N buoyancy and is ideal for swimming or stand-up paddling, for training or competitions. RESTUBE EXTREME has a buoyancy of 75 N and is suitable for rough conditions when kite- and windsurfing, surfing or in professional use.