Size Chart Guide

  • Measuring Instructions

Find your size

Measure the widest circumference along your residual limb. Using the chart below determine which size can accommodate your widest circumference.

ARM 12 18
Below-Knee 22 18
Above-Knee 28 18



Prosthetic Categories

Comfort Products

Comfort Ultra-Fit Filler Prosthetic Sock, 1 Ply, 6 Pack

Comfort Products

Comfort Ultra-Fit Filler Prosthetic Sock, 1 Ply, 6 Pack

Size Chart Guide
€20,95 - €24,95
€20,95 - €24,95
Sale price
Unit price

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In-Stock, 80% of sizes ship within 2-4 business days.


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Buy all three

Ultra-Fit Filler Sock Description

The Comfort Ultra-Fit Filler Prosthetic Sock is a spacer filler sock intended to for use when you are in-between a standard sock ply and simply need a filler (1 Ply) sock. When you examine this lightweight sock it will become immediately apparent how soft and stretchy Comfort Products designed this prosthetic filler sock. The extra stretch will conform to nearly any residual limb shape and the knitted toe pocket will lessen any heavy seams common with other  filler socks for amputees. The Ultra Fit Filler Sock's special knitting allows the standard 18" length to be cut shorter without the fear of running or unravelling. The Cotton and Lycra construction, along with Comfort Products unique finishing processes make the Ultra-Fit Filler Spacer Prosthetic Sock extremely soft.


  • Exceptional stretch helps conform to irregular shapes, including Symes and Chopart amputations
  • Grab a scissors and customize sock filler sock length to your preference
  • Ultra-Fit Filler socks have a knitted toe pocket with minimal side seam  to lessen skin irritation
  • Full 1-ply thickness on all styles of these spacer filler socks
  • Nylon reinforced toe for added durability
  • Available in AK amputee, BK amputee, Arm amputee/Pediatric versions
  • Available sizes fit approximately 90% of limbs
  • Sold in packages of 6 spacer socks
  • Made in USA

Have product questions? We're here to help!


Features & Details

Comfort Ultra-Fit Filler Sock Materials

Cotton and Lycra construction

Care Instructions

Wash your Comfort Ultra-Fit Filler Sock every day. Machine wash with all purpose detergent similar to Medi Wash. Rinse thoroughly and pull taut, toe to top. No liquid softeners. Last tumble dry, low heat.


Wear a clean sock every day for proper residual limb care.

Part Numbers (SKUs)

Amputation Level SKU
Below-Knee Amputee CUFH
Above-Knee Amputee CUFHAK
Arm and Pediatric Amputee CUFA | CUFP


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.


Ultra-Fit Filler Prosthetic Sock typically ships within 24-48 hours.

Product Packaging: Polybag

Customer Reviews & Questions