This innovative liner works seamlessly with calf compression wraps to provide 15 mmHg compression in the ankle, foot and toes. Knit with ionized silver yarns, this liner is naturally antibacterial. The silver threads will kill bacteria on the skin making the liner great for anyone with an injury to the skin, ulcer or open wound. DriRelease technology wicks moisture from the skin and prevents odor. The foot of the liner has a soft cushioned heel and flat toe seam for ultimate comfort. The XX-Large Size fits a calf up to 25" wide. 15 mmHg compression in the toe, foot and ankle. No compression above the ankle. Knit with ionized silver technology - prevents bacterial growth DriRelease technology wicks moisture from the skin Cushioned heel Flat toe seam Manufactured by SIGVARIS in the USA Sold as a pair Designed for the Sigvaris CompreFit and CompreFlex wraps, but can be used with any compression wrap. BiaCare is now owned by Sigvaris. The name of the garment has changed, but the product is still the same.