The comfort of the Alpha Liner is available for upper extremity amputees. WillowWood adapted its lower extremity Alpha Liners for use by transradial and transhumeral amputees. In order to provide maximum comfort and excellent socket fit, the Alpha Classic Upper Extremity Liner is available in 3 mm gel thickness as well as three sizes to adapt to the amputee’s limb circumference. The unique oval-shaped umbrella allows for a more comfortable fitting liner on upper extremity patients. Like the lower extremity liners, the Alpha Classic Upper Extremity Liner is heat moldable, allowing prosthetists to easily tailor the liner's fit within their facilities. The Alpha Classic Upper Extremity Liner is designed for use with 1/4 x 20 threaded pins.