Checked on each brand's own pages on November 5, 2026. Cost per mile is list price divided by each brand's own mileage claim. Theirs may cost less up front. Ours costs less per mile. Price is what you pay. Value is what you get.
Comparisons
How the big insole brands really compare
Every insole brand says theirs lasts. Very few show you the testing. Here's what Blumaka, Superfeet, Currex, Aetrex and VKTRY each claim, what's behind it, and what it costs per mile.
Shop NonSlipFree shipping · 90-day guarantee, even if worn · 1,000-mile cushioning guarantee
The short answer
Of the five brands here, Blumaka is the only one with independent durability testing published that we could find: our insoles kept 87% of their cushioning after 1,389 miles in testing by Heeluxe, an independent lab, and they come with a 1,000-mile cushioning guarantee. That makes Blumaka the lowest cost per mile, at 5 to 6.5 cents. Superfeet works out to 9 to 12 cents and Currex to 10 to 15 cents by their own numbers.
The short version
| Brand | How long they say it lasts | Independent durability testing published? | Cost per mile | Guarantee |
|---|---|---|---|---|
| Blumaka | 1,000-mile cushioning guarantee | Yes. 87% of cushioning kept after 1,389 miles (Heeluxe, an independent lab) | 5 to 6.5 cents | 90 days, even if worn |
| Superfeet | Up to 12 months or 500 miles | None found | 9 to 12 cents | 60 days |
| Currex | At least 400 to 600 miles | None found | 10 to 15 cents | 60 days |
| Aetrex | Replace every 6 to 9 months | None found | No mileage given (about $93 to $140 a year) | 30 days |
| VKTRY | Replace each season | None found | No mileage given ($149 a season) | 120 days (90 in their FAQ) |
Read the full comparisons
Blumaka vs Superfeet
Durability, grip, price and carbon options, side by side. Read it
Blumaka vs Currex
Mileage, testing and sport-specific models. Read it
Blumaka vs Aetrex
Lifespan, price, trial length and foot scanning. Read it
Blumaka vs VKTRY
Their claims vs their own research, and how we test. Read it
Not sure which Blumaka insole is right for you? Take our insole quiz. It matches you to an insole and arch height in about a minute.
Why testing matters
Every brand can say its insoles last. The question is whether anyone measured it, and what you pay for each mile.
We sent ours to Heeluxe, an independent footwear testing lab. After 1,389 miles, they still had 87% of their cushioning. That's why we can guarantee 1,000 miles.
We also put athletes through independent biomechanical performance testing. 90% ran faster, 80% stopped faster and 80% increased lower-body stability. The results are on our data page.
Questions we get a lot
Tap a question to see the answer.
Which insole brand lasts the longest?
Of Blumaka, Superfeet, Currex, Aetrex and VKTRY, Blumaka is the only one with a 1,000-mile cushioning guarantee and independent durability testing published (87% of cushioning kept after 1,389 miles, tested by Heeluxe). Superfeet says up to 500 miles, Currex 400 to 600 miles, Aetrex recommends replacing every 6 to 9 months, and VKTRY recommends replacing each season.
Which insole is the best value?
By cost per mile, Blumaka: 5 to 6.5 cents a mile, based on its 1,000-mile cushioning guarantee. Superfeet works out to 9 to 12 cents and Currex to 10 to 15 cents, using their own mileage claims. Some brands cost less up front, but not per mile.
Do insole brands test their insoles?
Few publish it. On their own pages, we couldn't find durability testing from Superfeet, Currex, Aetrex or VKTRY. Blumaka publishes durability results from Heeluxe, an independent lab, and independent biomechanical performance testing.
Which insole brand has the best guarantee?
VKTRY advertises the longest trial, 120 days (90 in its FAQ). Blumaka offers 90 days, even if worn, and is the only brand here that also guarantees its cushioning, for 1,000 miles. Superfeet and Currex offer 60 days, and Aetrex offers 30.
Competitor facts are from each brand's own published pages, checked November 5, 2026, and are listed on each comparison page. Blumaka durability: 1,000-mile cushioning guarantee; cushioning retention from Heeluxe testing.
Last updated: November 5, 2026
