ALPS UltraSeal Liner

PART # USHSL/USHSC/USLSL/USLSC

The ALPS® UltraSeal Liner features an integrated band that creates an airtight seal as the user steps into the socket. The liner’s smooth inner wall, constructed with OptiSil, a soft, white silicone, easily conforms to and cushions the residual limb. The silicone, combined with a strongly knitted fabric covering, creates excellent durability and a secure fit.

Product Description


Features a single-sealing band to ensure a secure hold- available at two different heights.


OptiSil offers a smooth inner surface that conforms to the contours of the residual limb, cushioning it and reducing friction and irritation.

Premium fabric covering limits excessive stretch and pistoning.


Available for above-knee (AK) and below-knee (BK) amputees.


Key Benefits

Guarantees a comfortable cushion between the socket and residual limb, maximizes suspension, and provides the utmost ease of use.

Gray fabric combines strength and durability, allowing differentiated stretch and comfortable elasticity.

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Offers improved suspension over the standard cushion and locking prosthetic liners.

The Cushion version benefits the hypobaric suspension and does not need a suspension sleeve on transtibial patients. The Locking version reduces the rotation compared to a typical locking liner.

Technical Details


MEASURED SIZE (CM) HIGH RING LOCKING 3.0MM UNIFORM HIGH RING CUSHION 3.0MM UNIFORM
20-21 cm USHSL20 USHSC20
22-23 cm USHSL22 USHSC22
24-25 cm USHSL24 USHSC24
26-27 cm USHSL26 USHSC26
28-29 cm USHSL28 USHSC28
30-31 cm USHSL30 USHSC30
32-34 cm USHSL32 USHSC32
35-37 cm USHSL35 USHSC35
38-40 cm USHSL38 USHSC38
41-43 cm USHSL41 USHSC41
44-47 cm USHSL44 USHSC44
MEASURED SIZE (CM) LOW RING LOCKING 3.0MM UNIFORM LOW RING CUSHION 3.0MM UNIFORM
20-21 cm USLSL20 USLSC20
22-23 cm USLSL22 USLSC20
24-25 cm USLSL24 USLSC24
26-27 cm USLSL26 USLSC26
28-29 cm USLSL28 USLSC28
30-31 cm USLSL30 USLSC30
32-34 cm USLSL32 USLSC32
35-37 cm USLSL35 USLSC35
38-40 cm USLSL38 USLSC38
41-43 cm USLSL41 USLSC41
44-47 cm USLSL44 USLSC44

Distal End Construction

The UltraSeal Liner's distal end assembly process is unique and complex, involving several elements that fuse together to create a highly durable internal structure. This structure results in a liner that is guaranteed to provide the protection, comfort, durability, performance, and fit that users deserve.

Associated Patents:
U.S. 11,602,445

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