Blue Thunder Compression Socks

All our socks have grade II compression (20-30mmHg).

Our 36-39 size is suitable for people with a calf measurement of 35-41cm, and our 40-43 size is suitable for a calf measurement of 38-44cm.

If you are indecisive between two sizes, we suggest choosing the smaller size for a tighter fit.

Please note that, due to different suppliers of our colored threads, there might be a slight difference of compression between our models.

Each pair is designed and marked with an L and R to fit your left and right foot exclusively.

Machine wash at max. 30ºC

No spin/delicate spin cycle

Do not tumble dry

Do not iron

Our compression socks lose elasticity with repeated use and washing, becoming less effective. To avoid this, try not washing them after every single use and handling them with care. If you wear them regularly, you should consider replacing your socks every 6 months/1 year.

All our socks are 100% created, designed and made in Portugal.

58% polyamide, 25% polyester, 17% elastane