Before exploring the underwater world, don't forget to check your EasyBreath mask, and particularly your kid's mask.
To snorkel safely, check in particular your mask's straps, valves and snorkel.
Find out more about how to properly check your mask in the following videos.
If you have any doubt or if your mask presents any defect, please visit your local Decathlon store.
If you have any questions, please do not hesitate to contact your nearest store.