Blue Seventy Thermal Swim Sock - 2024

Blue Seventy
(1 review)
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Our design philosophy is simple - to create products that help swimmers reach their full potential. Wherever you swim, however fast you move, our equipment line is designed to work with you.

Advanced Zirconium liner at the foot reduces water absorption and creates extra insulating layer. Longer length to reduce water entry.

Available in sizes Small (European size 35-41) and Large (European size 42+)



  • 4
    blue seventy thermal swim sock

    Posted by dean c bornemann on 15th May 2023

    I used this item for the first time this weekend. When I entered the water the sock immediately took on water and became saturated. I thought there is no way this swim sock was going to work and keep my feet warm. However, once I began to swim and even though the sock became saturated right away the sock did a good job in keeping my feet pretty warm and very tolerable in 50 degree water. I am happy with the purchase and would recommend this swim sock.