Precautions for selecting swimming goggles:
1: Check whether the goggles are transparent and have scratches.
2: Check whether the gasket (rubber) of the goggles is sealed.
3: pay attention to the width of the nose bridge of the goggles. The width of some goggles can be adjusted, while some cannot, so you must try to bring them to see if they are suitable.
4: the quality of the goggles belt. If the elasticity and firmness of the belt are not good, it is easy to be damaged, so pay attention to the quality of the belt when selecting.

Use and maintenance of swimming goggles
1: maintain proper tightness
one thing that should be paid great attention to when wearing swimming goggles is not to tighten swimming goggles too tightly, otherwise it will easily cause brain hypoxia or eye discomfort.
2: Make the goggles not fog
people often worry about the fog of swimming goggles. In fact, we can solve this problem in a very convenient way.
A. Apply antifogging agent on the goggles. Antifogging agent can be bought in the store.
B. Apply spittle (that is, saliva) around the glasses and inner and outer sides, and then wash it with water (do not use hands).
3: After use, clean it with clean water and dry it in the shade. Be careful not to wipe the lens with a towel to avoid scratching the mirror surface.
4: New goggles have generally been anti-fog, so don't apply too much antifogging agent.
5: Do not place the goggles in a place with high temperature, let alone expose them to the sun.