Runner mid-stride on rain-slicked track, carbon fiber blade prosthesis catching stadium light with water droplets frozen in motion
Spring 2026 Fitting Slots Now Open

Your current limb
got you here.
Your next one
takes you further.

Custom-tuned carbon, silicone matched to your skin — components engineered to the geometry of your gait.

Scroll to explore
⚡ 3 fitting slots left in March🎨 Limited-run Midnight Violet cover — 8 units📋 Insurance cycle ends Apr 30 — claim your upgrade🏃 New Flex-7 running blade just arrived⚡ 3 fitting slots left in March🎨 Limited-run Midnight Violet cover — 8 units📋 Insurance cycle ends Apr 30 — claim your upgrade🏃 New Flex-7 running blade just arrived

What you gain.
Measured. Compared.

Keeping the old component means leaving measurable performance on the table. Here's the math.

Avg. system weight
Standard2800g
Stride0g
−520gFull leg assembly, socket to foot
Ankle range of motion
Standard18°
Stride0°
+29°Dynamic carbon foot vs SACH
Energy return
Standard62%
Stride0%
+32%Stride sprint blade vs standard running foot
Socket pressure points
Standard8
Stride0
−6Custom carbon laminate vs prefab socket
Insurance cycle awareness

Your next benefit period opens
in less than 60 days.

Most insurance plans cover a major component upgrade every 3–5 years. We handle the prior authorization, documentation, and appeals if needed.

Check My Coverage →No cost to check. 10 min.

What the upgrade
actually changed.

I shaved 4 minutes off my half-marathon PR two months after the Sprint Blade fitting. The gait analysis session alone changed how I think about my running mechanics.

Marcus Delray, Black man in his 30s, athletic build, smiling outdoors in running gear
Marcus Delray
Below-knee amputee · Marathon runner
Portland, OR
Sprint Blade
−4:12 half marathon PR
Start Here

Upgrade My Limb.
Tell us where you are.

No commitment. We'll outline your options and handle insurance verification.

What happens next
01
We review your setup
Clinician checks your current device and activity profile — 24h.
02
Insurance check
We run a pre-authorization to confirm coverage before you commit.
03
Fitting slot booked
Schedule your 90-min gait analysis and component fitting session.
04
Click. Done.
Your upgrade ships or is fit in-clinic. Hear that click.
Spring fitting slots filling fast.
March and April dates are 60% booked. Insurance deadlines for the spring cycle close April 30.
4 slots remaining this month →
4 slots left this month
Ready to upgrade?
Upgrade My Limb