How do I know if the compression is too tight?

Firm compression should feel snug and supportive but never painful, numbing, or tingly. If your feet feel cold or numb within 15-20 minutes of putting on the socks and boots, the compression may be too firm or the sock may be too small. Other signs of excessive compression include visible deep indentations when you remove the sock, or a pins-and-needles sensation. If you experience these symptoms, try moderate compression (15-20 mmHg) or size up. Never sacrifice circulation for compression—the performance benefits only work when blood flow is improved, not restricted.