ALPS Smart Seal™ Liner

PART # SADT/SAFR/SBFR

ALPS Smart Seal liner allows a non-constrictive hypobaric suspension of the residual limb. It has been engineered using HD Gel and covered by a limited vertical stretch fabric in the distal area for high stability within the socket.

It is indicated for transtibial and transfemoral users with medium to long residual limbs and knee disarticulation.

Product Description


The Smart Seal liner features integrated, silicone coated sealing bands that create a safe interface.


The bands stretch against the socket wall, preventing the liner from slipping.


The inner HD Gel layer, thanks to its low modulus of elasticity, easily conforms to the residual limb without restricting the blood flow.

It is available in two configurations with different sealing band heights.


Key Benefits

Ensures a high level of control of the prosthetic leg and minimizes soft tissue movement thanks to the High Density Gel.

Non-constrictive hypobaric suspension thanks to its integrated, silicone coated sealing bands.

Indicated both for transtibial and transfemoral users since the sealing bands are available in two different configurations.

Maximum stability of the liner within the socket due to the High Density Gel and the use of a limited vertical stretch fabric in the distal area.

Technical Details

HD GEL ICON

MATERIAL | HIGH DENSITY GEL

The relatively firm nature of the HD Gel combines comfort with control and stability. Best for use on highly active patients or those who are transitioning from a silicone liner to a gel liner.

* SAFR sizes 26, 28, 32, and 35 have a distal thickness of 4mm, while size 38 has a distal thickness of 7mm.

NOTE: SAFR AND SADT ARE FOR ABOVE-KNEE (AK) AMPUTEES, WHILE SBFR IS FOR BELOW-KNEE (BK) AMPUTEES

MEASURED SIZE (CM) SAFR - CUSHION 3MM OR 6MM UNIFORM
26-27 cm SAFR26-(3 or 6)
28-31 cm SAFR28-(3 or 6)
32-34 cm SAFR32-(3 or 6)
35-37 cm SAFR35-(3 or 6)
38-43 cm SAFR38-(3 or 6)
MEASURED SIZE (CM) SADT - LOCKING 3MM OR 6MM UNIFORM
20-23 cm SADT20-(3 or 6)
24-25 cm SADT24-(3 or 6)
26-27 cm SADT26-(3 or 6)
28-31 cm SADT28-(3 or 6)
32-34 cm SADT32-(3 or 6)
38-43 cm SADT38-(3 or 6)
MEASURED SIZE (CM) SBFR - CUSHION 3MM OR 6MM UNIFORM
20-23 cm SBFR20-(3 or 6)
24-25 cm SBFR24-(3 or 6)
26-27 cm SBFR26-(3 or 6)
28-31 cm SBFR28-(3 or 6)

Other liners you might be interested in.

Want to know more?

Our specialists will be happy to answer all of your questions.

Subscribe to our newsletter.
Receive info about products, tutorials and new product releases.