Unna-Flex Elastic Unna Boot Compression Bandages

For clinicians managing venous leg ulcers, venous stasis dermatitis, and lower-leg edema, the Unna-Flex line delivers the sustained compression that a traditional Unna boot provides — with far more give than the rigid zinc paste dressings of the past. The elastic construction conforms to the contours of the calf and ankle, accommodating minor swelling changes and patient movement while still maintaining therapeutic pressure over the wound bed.

This collection carries the core sizes practices reach for most: the 3 inch x 10 yard Elastic Unna Boot (650940) for smaller limbs and tighter ankle wrapping, and the 4 inch x 10 yard version (650941) for standard adult legs and faster coverage. For a complete single-application dressing, the Unna-Flex Convenience Pack (650944) pairs a 4 inch x 10 yard Unna boot with a 4 inch x 5 yard self-adherent outer bandage — so the compression layer and the securing wrap arrive together, ready to go without hunting for a separate cohesive bandage.

A common question: how is an Unna boot different from a standard compression wrap? The paste impregnation (zinc oxide, calamine, and glycerin in most formulations) soothes and protects periwound skin while the semi-rigid dressing hardens slightly after application to create a firm, inelastic-feeling shell that resists limb expansion — ideal for ambulatory patients whose calf-muscle pump aids venous return. These boots are non-sterile and intended for application by a trained provider, typically left in place for up to a week between changes depending on drainage and physician orders.

Choosing a width comes down to limb size and the area being treated: 3-inch rolls give more control around the ankle and heel, while 4-inch rolls cover the leg efficiently and reduce the number of turns needed. Many clinicians keep both on hand.

If you're building out your compression and wound-care supply, explore related wraps in our Co-Flex cohesive bandage collection to secure your Unna boot, and browse Corr-A-Flex for additional compression bandaging options.