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Liners. A silicone liner containing phase-change material to help manage heat.
ALPS
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The ALPS UltraSeal Liner is a suction liner with a single sealing band on the outside that seals against the socket wall. It is made in gel and in silicone. The gel version has a uniform 3 mm wall of OptiGel under a grey knitted fabric with limited vertical stretch. The band can sit at one of three heights, starting 7, 5 or 3 inches from the distal end.
- Type
- Sealing suction liner
- Materials
- Gel (OptiGel) or silicone
- Thickness
- 3 mm uniform (gel version)
- Suspension
- Cushion or locking
ALPS UltraSeal Liner key features
- Gel and silicone versions
- Uniform 3 mm wall in the gel version
- Seal ring heights: high, low or ultra low
- Cushion or locking
- Above-knee and below-knee use, K1-K4
- Eight sizes, 20 to 47 cm circumference
Who the ALPS UltraSeal Liner suits
For people who wear, or are moving to, a suction suspension socket and want the seal built into the liner. It covers above-knee and below-knee limbs at K1 to K4. A prosthetist selects the ring height to suit your limb length and socket.
This kind of device is prescribed and fitted by a clinician. An enquiry starts that conversation. It is not a purchase.
ALPS UltraSeal Liner specifications
| Type | Sealing suction liner |
|---|---|
| Materials | Gel (OptiGel) or silicone |
| Thickness | 3 mm uniform (gel version) |
| Seal ring heights | High 7 in, Low 5 in, Ultra Low 3 in from distal end |
| Suspension | Cushion or locking |
| Sizes | 20-47 cm circumference, 8 sizes |
| Activity level | K1-K4 |
| Amputation level | Above knee and below knee |
| Fabric | Grey knit, limited vertical stretch |
| Price | Quoted on request |
| Maker country | USA |
| Brand | ALPS |
| Category | Components and consumables, Liners |
| Catalog ID | PR-086 |
Compared with the source page on 5 October 2026. Details can change, so we confirm them in your quote. Open the source page.
ALPS UltraSeal Liner: common questions
What sizes does the ALPS UltraSeal Liner come in?
The gel version is listed in eight sizes covering limb circumferences from 20 to 47 cm.
Where does the seal sit on the UltraSeal liner?
You can choose a high, low or ultra low ring, which starts 7, 5 or 3 inches from the centre of the distal end.
Is the UltraSeal liner gel or silicone?
Both are made. The specifications on this page are for the gel version, which uses ALPS OptiGel.
How to get a quote for the ALPS UltraSeal Liner
Add it to your enquiry list
Press Add to enquiry. You can add other products and parts to the same list.
Tell us your country and needs
Send the list with your country, sizes and any options you want. No payment details are asked.
Get a personal reply
You receive availability, a price and delivery options by email, and decide after that.
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