Size Chart Guide

  • Above-Knee
  • Measuring Tips

STEP 1: Top & Bottom

Measure the circumference along the top of your groin and 2 inches up from the end of your residual limb. Continue to STEP 2: Find your size


Measuring instructions for soft-sock with xstatic for an aka amputee.

STEP 2: Find your size

Take both your top, bottom, and length measurements and use the chart to determine your size. If you're in-between sizes, we suggest remeasuring again to be on safe side.

Small 16 - 18 5
Medium 18 - 23 5
Large 23 - 27 1/2 6
X-Large 27 1/2 - 31 1/2 6 1/2
XX-Large 32 -

When taking body measurements, you need to use the correct type of tape measure. You will want to use a soft cloth or flexible plastic tape measure, similar to what a seamstress uses. Do not use a metal measuring tape, used in construction (your measurements will be inaccurate).

Pay special attention not to pull your measuring tape too tight. Doing so will produce a measurement that is too small. The most difficult measurement is the bottom measurement. Too often, people measure too high along the bottom of their limbs producing a larger "Bottom" measurement. Ideally, measure 2 inches up from the bottom of your limb and use a pen to mark this level on your limb. Once you know exactly where to measure, use a tape measure to carefully measure your bottom circumference.



Prosthetic Categories

Arion International

Arion Proth-Pro, Prosthetic Donning Aid for Suction Sockets

Arion International

Arion Proth-Pro, Prosthetic Donning Aid for Suction Sockets

Limited time deal

Discount on select sizes.

Size Chart Guide
€30,95 - €38,95
€30,95 - €38,95
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Arion Proth-Pro Description

Arion Proth-Pro is a prosthetic donning aid intended for suction suspension sockets to simplify putting on your prosthesis without pain and discomfort. Every morning doesn’t have to feel like “Monday Morning” when putting on your suction prosthetic socket. The Arion Proth-Pro donning aid makes the physically straining morning task of putting on your prosthesis easier. This Arion donning aid is made of a durable Rip Stop Nylon material and will not stretch out. The low shear resistance that nylon helps you avoid skin abrasion along areas below your groin area and distal (bottom) femur. This can be a great solution for traumatic above knee amputations that have scarred or hypersensitive skin, however prefer the “oneness” of suction suspension.


  • Arion improved the design leading to only a single seam donning sleeve
  • Similar fabric and sizing as Easy-Proth and Launch Donning Sheath
  • Significant time savings, stop spending 15 minutes applying your AK prosthetic leg in the morning
  • Pain free technique that avoids the burning, rubbing and irritation associated with the traditional ace wrap or stockinette donning method
  • Proth-Pro is intended for above-knee amputees that use a suction and valve socket suspension design
  • Easy to carry with you, no need to pack a full bag with ace wraps, powder and back-up stockinette
  • Available in 5 Arion Proth-Pro sizes, Orange color
  • Sold each in a poly bag

The Arion Proth-Pro works great for those prosthetic users with scar tissue or grafted skin. Its slick nylon negates the abrasive nature of similar donning techniques, such as the old pull sock with powder method. The Proth-Pro is easy to carry along with you and its one seam design can last many months of helping you apply your suction prosthetic leg.

Suggested Use

There are many different techniques for donning your prosthesis, many of which involve either lotions, powders or a combination of the two. Using a Arion Proth-Pro is a great donning sleeve solution if you have good balance and strength.  If you're used to using an ace bandage and powder or pull sock and powder than you'll surely find an Arion Proth-Pro easier with less strain.

How-to Use

Proth-Pro Donning Instructions:

  1. To apply the Proth-Pro donning aid, first fully spread out the aid.
  2. Fold the top half of the Proth-Pro into the other half. Make sure the seams are flush with each other; loop is on the outside.
  3. With both hands, pull the Proth-Pro over your residual limb like a sock. Avoid creases.
  4. Position the socket over your residual limb after which the loop of the Arion Proth-Pro can be put through the socket’s valve hole.
  5. Finally, slowly pull the Proth-Pro out of the prosthetic socket by pulling the loop through the valve hole. If you realize your residual limb is not positioned inside your socket properly, this procedure has to be repeated.

Have product questions? We're here to help!


Features & Details

Arion Proth-Pro Materials

Ripstop Nylon

Care Instructions

  • Proth-Pro may only be washed by hand a low temperatures (30 degree celcius)
  • Only dry your Proth-Pro with a towel
  • Do Not iron
  • Do not clean or treat with bleach
  • Do not expose this prosthetic product to sources of heat like bright sunlight, heaters and so on.


Be careful! Do not step on your Arion Proth-Pro as the highly slippery material makes it a slipping hazard. When using the Proth-Pro, it is important to use the correct size. Your Proth-Pro will not work as described and may prematurely wear out if sized too small.

Part Numbers (SKUs)

Size SKU
Small E02702
Medium E02703
Large E02704
X-Large E02705
XX-Large E02706


If you're not completely satisfied with your Amputee Store purchase, you can return your eligible items within 90 days of the original ship date. Items in new condition (unopened/unworn/unwashed) can be returned for a full product refund less original shipping costs. Please read our complete return policy for further instructions.


Arion Proth-Pro typically ships within 24 hours.

Estimated Product Dimensions (inches): L 9.75 W 7.5 H 0.5

Estimated Product Weight: .2lbs

Product Packaging: Polybag

Customer Reviews & Questions