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This page describes products and general use; it is not medical advice.
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InterDry is not a wound dressing in FDA records. It is a non-sterile, single-patient-use textile that FDA files as a “skin protectant” for skin folds and other skin-to-skin contact areas. This page is for clinic staff, buyers and students who need to know what the product is, how FDA classifies it, and which sizes are listed in the FDA device database.
What is InterDry, and is it really a wound dressing?
InterDry is a moisture-wicking fabric with an antimicrobial silver complex. Its FDA 510(k) summary (K110715) describes it as a “non-sterile skin protectant fabric with an antimicrobial silver complex” that is a “single patient use product that is custom cut from a multiuse package”. The stated indication is management of skin folds and other skin-to-skin contact areas. Although people search for it as a wound dressing, its cleared indication does not mention wounds.
How it is built
The earlier 510(k) summary (K061615, “Interdry Textile with Silver”) describes a knitted polyester fabric with a polyurethane coating that contains a silver-based antimicrobial (AlphaSan RC-500). FDA’s summary says the fabric provides moisture management to keep skin dry and that its low coefficient of friction reduces skin-to-skin friction. The silver-based antimicrobial in the coating is described as being for odor control.
The later summary (K110715) says the device “reduces microbial colonization in the fabric”. That is a claim about the textile itself, not about the patient’s skin. The performance testing it lists covers biocompatibility, antimicrobial effectiveness within the device, and physical properties: absorption, wicking, friction and silver release.
FDA classification and 510(k) history
| Item | What FDA records show | Source |
|---|---|---|
| Product code and name | FRL, “Fiber, Medical, Absorbent” | openFDA classification; K110715 |
| Device class | Class I (general controls) | 21 CFR 880.5300(b) |
| Common name in the summary | Skin protectant | K110715 |
| K061615 “Interdry Textile with Silver” | Decision 2006-12-22; polyester knit with silver-based antimicrobial in a polyurethane coating; described in K110715 as prescription use | K061615; K110715 |
| K110715 “InterDry” (Milliken Healthcare Products) | Decision 2011-11-04, Substantially Equivalent; compared with K061615 and with an over-the-counter absorbent padding | K110715; openFDA 510(k) |
| Sterility, use and channel in the device database | Not sterile; single use; over-the-counter, not prescription | openFDA UDI (AccessGUDID data) |
The regulation, 21 CFR 880.5300, covers a “device intended for medical purposes that is made from cotton or synthetic fiber in the shape of a ball or a pad”, used to apply medication or soak up small amounts of fluid from skin. It is a Class I device, exempt from 510(k) premarket notification subject to the limits in 21 CFR 880.9. Retail listings that call InterDry sterile or a wound-contact dressing do not match the FDA record, which lists it as non-sterile.
Sizes listed in the FDA device database
| Catalog number | Width | Length | Source |
|---|---|---|---|
| 7915 | 10 in | 18 in | openFDA UDI (Coloplast Corp.) |
| 7912 | 10 in | 36 in | openFDA UDI (Coloplast Corp.) |
| 7910 | 10 in | 144 in | openFDA UDI (Coloplast Corp.) |
The K110715 summary says the product is “custom cut from a multiuse package”, and the original K061615 summary describes a 25.4 cm x 365.8 cm fabric piece “although other sizes may be available”. Each cut piece is for a single patient.
Safe use and handling basics
- The FDA record describes the product as non-sterile and for single patient use. Do not share a piece between patients.
- The cleared indication in the FDA summaries is skin folds and skin-to-skin contact areas.
- Application, wear time and replacement details come from the manufacturer instructions for use, not from this page.
Common mistakes
- Treating it as a sterile wound-contact dressing. The FDA database lists it as non-sterile.
- Assuming the silver claim covers the patient’s skin. The FDA summary states reduced colonization in the fabric.
- Sharing one cut piece between patients, which conflicts with the single-patient-use description.
FAQ
Is InterDry a wet-to-dry dressing?
No. InterDry’s FDA-cleared indication is a skin protectant for skin folds and skin-to-skin contact areas, not a wound dressing technique of any kind.
Is InterDry the same as Adaptic?
No. Adaptic is a different product, a non-adherent dressing. See the CASRAI guide What is Adaptic and the broader non-adherent dressing guide.
What is the FDA product code for InterDry?
FRL, “Fiber, Medical, Absorbent”, a Class I category under 21 CFR 880.5300.
Is InterDry sterile?
No. The FDA device database lists it as not sterile, single use, and over-the-counter.
Related guides
Sources
- FDA 510(k) Summary K110715, InterDry, Milliken Healthcare Products: accessdata.fda.gov (checked 2026-11-01)
- FDA 510(k) Summary K061615, Interdry Textile with Silver: accessdata.fda.gov (checked 2026-11-01)
- openFDA device UDI (AccessGUDID data), brand InterDry: api.fda.gov (checked 2026-11-01)
- openFDA device classification, product code FRL: api.fda.gov (checked 2026-11-01)
- 21 CFR 880.5300, Medical absorbent fiber: law.cornell.edu (checked 2026-11-01)
