The underarm crutch is the oldest mobility aid design still in widespread use, and in some ways it shows its age—anyone who’s spent more than a week on traditional wooden crutches can tell you about the underarm soreness, the wrist fatigue, and the way the crutch tips seem to find every crack in the sidewalk. The AM-FS925L is an aluminum underarm crutch that keeps the familiar form factor—the one every physical therapist knows how to fit and every patient recognizes immediately—while addressing the most common failure points of traditional designs. It won’t revolutionize the crutch category. What it will do is work reliably for as long as you need it, without the splinters, the squeaks, and the sudden height collapses that make cheaper crutches a liability.
The frame is 6061 aluminum tubing, 25 mm diameter for the main shaft and 19 mm for the forearm support bar—lighter than wood (800 grams per crutch versus approximately 1100 grams for a wooden equivalent) and immune to the warping and cracking that eventually affects wooden crutches in humid environments. The underarm pad is high-density polyurethane foam, 25 mm thick, wrapped in a seamless PVC cover that doesn’t absorb sweat and can be wiped clean. The foam density was chosen to provide cushioning without bottoming out under body weight—cheaper crutches use low-density foam that compresses to near-zero thickness after a few weeks of use, leaving the user essentially resting their armpit on bare aluminum.
Height adjustment uses a double-push-button system—two independent locking pins, one on each side of the shaft—that prevents the accidental collapse that can happen when a single-button lock is bumped or only partially engaged. The adjustment range covers users from approximately 150 cm to 195 cm in height, distributed across three size variants: Small (for users roughly 150-165 cm), Medium (165-180 cm), and Large (180-195 cm). The forearm grip height is also independently adjustable via a wingnut-and-bolt system that lets you fine-tune the position for optimal wrist alignment.
The crutch tip is a heavy-duty rubber cup, 38 mm diameter, with a deep tread pattern designed for wet surfaces. The tip is secured with a metal retaining ring that prevents the shaft from punching through—this is the number-one failure mode on cheap crutches, and it’s the first thing I specified against when designing the 925L. A spare pair of tips is included in every box. Weight capacity is 130 kg per crutch, sold as a pair. The aluminum frame is available in a natural silver anodized finish.
If you’re supplying crutches for a hospital, clinic, pharmacy, or direct-to-patient distribution, the 925L is the model I recommend for reliable, no-drama mobility support. Contact me for volume pricing and current stock availability across all three sizes.
