Fs4+ Compression Socks

FS4+ is designed as an all-in-one running and recovery sock that effectively combats swollen ankles, heel spurs (plantar fasciitis), shin splints and Achilles tendonitis. These functional socks combine five graduated compression zones to provide support and relief for foot and leg pain, as well as speeding up recovery after intense training. Like other socks from OS1st, FS4+ provides specific support for the plantar fascia (the tendon under the foot), which reduces pain from conditions such as heel spurs.

The anatomical design provides optimal fit and support during exercise, while the compression promotes good blood circulation. This is crucial for maintaining muscle health and accelerating muscle recovery. FS4+ also helps relieve pain in heels, bunions and sore leg muscles. They can be used both during and after exercise to provide extra support and accelerate recovery.

To find the right size, measure the circumference of your ankle and calf. If you are between two sizes, it is recommended to choose the larger one. The socks are sold in pairs and are made of 20% Lycra Spandex and 80% Micro-Nylon, which makes them both durable and comfortable.

Use OS1st FS4+ when:

• Heel spur (plantar fasciitis)
• Achilles tendonitis
• Periostitis
• Sore hollow feet
• Faster recovery
• Sore heels

Graduated compression

• Zone 1 10-15 mmHg
• Zone 2 20-30 mmHg
• Zone 3 15-20 mmHg
• Zone 4 20-30 mmHg
• Zone 5 20-30 mmHg