Sorry you're experiencing alot of leaking on the Thermal Socks. If possible we recommend wearing them tucked under the leg of your wetsuit. That will help keep water out. Also if they are not very snug around your ankle/calf it's possible the smaller size could work better. Feel free to reach out for any help with the socks / sizing.
“I have been using these socks for a couple of years and like them very much. They are easy to put on and remove. Though they are not very warm, they still allow me to swim about half an hour-45 minutes in Puget Sound during the coldest months, when the water temperatures are in the low 50s' Fahrenheit. I just got a pair for my husband who does the cold exposure, a dozen of minutes submersion in the Sound without a wetsuit. The socks are perfect for walking down the beach.”
