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KASK vs Trauma Void, One K and Equinavia: Which Helmet Fits You?
The look you liked in a KASK, in a shape that fits your head.
Comparing a KASK Star Lady, Dogma or Kooki Lady with the helmets we carry? Match by look and head shape: the Trauma Void Lynx Smooth Top and EQ3 NEOZ for a low show profile, the Equinavia Crown MIPS and One K MIPS CCS Avance Wide Brim for a wide brim, and the Equinavia Gardian for an everyday helmet with a dial fit.
The short version
If you like a KASK: the helmets to try first
The Trauma Void Lynx Smooth Top is the first helmet to try against a KASK Star Lady, and the Equinavia Crown MIPS is the one to hold up against a wide-brim KASK. Match the KASK line you know to the card below.
If you like
Star Lady, low show profile
Try
Trauma Void Lynx Smooth TopA low, clean shell with a round fit in small, medium and large and a dial at the back.
Shop nowIf you like
Star Lady or Dogma, smooth and sleek
Try
Trauma Void EQ3 NEOZA smooth show shell with a one-handed magnetic snap and a removable, washable liner.
Shop nowIf you like
Dogma XC, cross-country
Try
Trauma Void Lynx Eventing SkullA skull with no visor that laces at the neck, at about 560 grams as Trauma Void lists it.
Shop nowIf you like
Star Lady Hunter, wide brim
Try
Equinavia Crown MIPSA wide brim, a chrome-coated frame, MIPS and a dial fit, a price tier lower.
Shop nowIf you like
Kooki Lady, everyday riding
Try
Equinavia GardianA low-profile everyday helmet with a dial that adjusts for hair up or down.
Shop nowIf you like
Click-in liners for fit
Try
One K DefenderRegular/Round and Long Oval shells, with refit liners sold on their own to change the fit.
Shop nowRider voices
What riders say about the helmets they chose over a KASK
Riders tell us fit decides it: a KASK owner preferred the lower Trauma Void Lynx, and riders with very round, very large or very small heads found helmets that fit.
A fit other helmets missed
The helmets they point to
Trauma Void Lynx Smooth TopEquinavia Crown MIPS
Riders with hard-to-fit heads found their helmet here.
See head shapeLiners that change the fit
The helmets they point to
One K DefenderDefender Refit Liner
Swappable, washable liners do what KASK's click-in liners do.
See One KComfortable, and good-looking on
The helmets they point to
Trauma Void Lynx Smooth TopCrown MIPS, Black/Gunmetal
Riders forget they have it on, and like how it looks.
See Trauma VoidA fit other helmets missed
A rider who liked her KASK tried both Trauma Void shells and preferred the lower Lynx; others found the Lynx, the EQ3 and the Crown MIPS fit heads that are tiny, very round or very large and oval.
Trauma Void EQ3 and Lynx
I have a Kask that I like and fits well, then I tried the TraumaVoids – both the EQ3 and Lynx. Both fit very well, but I prefer the Lynx. It is lower profile and seems to wrap around more.
I tried on every brand of upscale helmet and the Lynx was by far the best fit for my tiny, kid sized head.
Equinavia Crown MIPS Riding Helmet
I have the Equinavia Crown MIPS helmet for my very large oval head and I love it. There's a limited range of brands where I live, I drove around a bunch of tack stores, tried on a few MIPS and CO models and none were right.
Trauma Void EQ3
I've got a very round head and the Trauma Void EQ3 fits me super well. It's quite comfortable. It does have a washable liner and comes in navy!
Liners that change the fit
One rider buys more than one One K liner so wearing her hair up no longer changes the fit; another says the washable, exchangeable liner tipped the scales.
One K riding helmets
I personally find this perfect as I can buy more than one liner and no longer have to deal with the different fit that is caused by wearing my hair up or in a pony…
One K riding helmets
I love the washable and exchangeable liner, and that was honestly what tipped the scales for me.
Comfortable, and good-looking on
Riders call the Lynx the most comfortable helmet they have owned, forget they are wearing their One K, and find the Crown MIPS and IRH helmets sleek and flattering.
I have a Trauma Void Lynx and it’s the MOST comfortable helmet I’ve ever had (CO always fit me well too).
One K riding helmets
One k. Cooler than my Tipperary sportage was, much cooler than my ayr8, love the washable liner. Love the fit- only helmet I've ever worn where I forget I'm wearing a helmet.
Equinavia Crown MIPS, Black/Gunmetal
I got the black and gunmetal, and it is one of the sleekest helmets I have ever owned. The brim is just wide enough to look attractive and be functional without it being overdone.
IRH riding helmets
I bought this helmet for my huge, English(hunter under saddle/equitation), AQHA classes. I needed an upgrade from an older helmet, and I needed something that would fit my head well, be comfortable throughout the whole class, and something that would look attractive, and not make my head look like a bowling ball.
Independent lab ratings
Virginia Tech's ratings for the helmets we carry
Virginia Tech's 2026 equestrian table of 54 helmets rates the Trauma Void NEOZ EQ3 at 4 stars, 6th, and the Trauma Void Pardus MIPS and Equinavia Gardian and Skylar at 3 stars. In the same table, KASK's Kooki Lady ranks 25th at 3 stars, and the Dogma and Star Lady rank 41st and 44th at 2 stars.
| Helmet | As Virginia Tech lists it | Rank of 54 | Stars |
|---|---|---|---|
| Trauma Void EQ3 NEOZ Helmet | TRAUMA VOID NEOZ EQ3 | 6 | 4 stars |
| Trauma Void Pardus Smooth Helmet | TRAUMA VOID PARDUS MIPS | 18 | 3 stars |
| Equinavia Gardian Riding Helmet | EQUINAVIA GARDIAN | 20 | 3 stars |
| Equinavia Skylar Riding Helmet | EQUINAVIA SKYLAR | 26 | 3 stars |
Ranks, stars and model names as Virginia Tech's 2026 equestrian table lists them (table checked October 2026); a lower rank number is a better score. Virginia Tech scores each tested model across 16 lab impacts and does not measure fit, so a rating and a fit are separate questions.
Price tiers
Which helmet to try for each KASK line, by price tier
Every KASK line has a carried helmet that matches its look, from the dial-fit Equinavia Gardian at the lowest tier to the One K MIPS CCS Avance Wide Brim at the top.
Price tiers among these picks: $ (lowest) to $$$$ (highest)
| If you like | Try | Why riders choose it |
|---|---|---|
| Star Lady, low show profile | A low, clean shell; riders call the Lynx lower in profile. | |
| Star Lady Hunter, wide brim | A hunter-style brim with a dial or liners to fine-tune the fit. | |
| Dogma XC | A skull with no visor that laces at the neck. | |
| Kooki Lady or Kooki | A dial fit for everyday riding; the Skylar has a ponytail cut-out. | |
| Click-in liners | Regular/Round and Long Oval shells, with refit liners sold on their own. |
Fit tip
Wrap a soft tape around your head about an inch above your eyebrows. KASK sizes in single centimeters, while the Trauma Void Lynx and Equinavia helmets adjust with a dial, so try a dial helmet at your measurement and between sizes.Trauma Void
KASK vs Trauma Void: Lynx Smooth Top, EQ3 NEOZ and Lynx Eventing
Trauma Void's Lynx Smooth Top and EQ3 NEOZ are the helmets we carry closest to a KASK Star Lady or Dogma, with a low, clean show profile, a dial at the back and a removable, washable Coolmax liner; Trauma Void lists MIPS on both.
The Lynx Smooth Top has a round fit in small, medium and large and weighs 600 grams as Trauma Void lists it. The EQ3 NEOZ adds a one-handed magnetic snap, and Trauma Void lists it as SEI ASTM F1163-23 certified. For cross-country in place of a Dogma XC, the Lynx Eventing Skull weighs about 560 grams, has no visor and laces at the neck; between sizes, Trauma Void says to take the larger size.
In fairness
KASK's single-centimeter sizing covers 13 sizes, so a rider who fits one KASK size exactly may need to try two Trauma Void sizes to match it.Shop Trauma Void helmets
Shop all ›One K
KASK vs One K: Avance Wide Brim, Defender and refit liners
One K's MIPS CCS Avance Wide Brim and Defender are the One K helmets that sit nearest a KASK on look, with a matte shell, a wide-brim option and refit liners that change the fit the way KASK's click-in liners do.
One K lists a polycarbonate and ABS composite shell, a washable, quick-dry, moisture-wicking liner and two head shapes: Regular/Round for equal front-to-back and side-to-side measurements, and Long Oval for a head longer front-to-back. The MIPS CCS Avance Wide Brim adds MIPS and a brim, and the Defender Refit Liner is sold on its own.
In fairness
KASK lists merino wool padding, and One K lists a quick-dry, moisture-wicking liner, so the feel against your head differs; try both on before you choose.Shop One K helmets
Shop all ›Equinavia and IRH
KASK vs Equinavia and IRH: Crown MIPS, Gardian and F1 Wide Brim
Equinavia's Crown MIPS, Gardian and Skylar and IRH's F1 Wide Brim are the helmets we carry for riders who want the KASK look a price tier or two lower, with a dial or liners to adjust the fit: the Crown MIPS has a wide brim and a chrome-coated frame, the Gardian a low-profile shell, and the Skylar a ponytail cut-out.
Equinavia lists the Crown MIPS with front, top and rear vents, a dial-adjustable fit and a removable, washable memory-foam lining, certified to ASTM F1163-23/SEI and CE EN 1384:2023. IRH's F1 Wide Brim has a lightweight shell and two liner thicknesses in the box. Riders tell us the Equinavia Gardian and an IRH both fit with hair up or down.
In fairness
A KASK Star Lady Hunter's brim and finish are their own look; hold the Crown MIPS and F1 Wide Brim up beside a photo of the KASK you like before you choose.Equinavia Gardian Riding Helmet
Just love this helmet. Looks great, very comfortable, love that it is adjustable (for hair up and hair down)
IRH riding helmets
My helmet fits with my hair up and down, I tried it with my hair up, and again IT DOES fit me with my hair down
Shop Equinavia helmets
Shop all ›Fit first
Round head, long oval or hair up: which helmet to try first
Match the helmet to your head shape first: Trauma Void describes the Lynx as a round fit, One K makes its Defender and Avance in Regular/Round and Long Oval, and a dial-fit helmet such as the Equinavia Gardian or Skylar lets you fine-tune between sizes.
Measure about an inch above your eyebrows, compare front-to-back with ear to ear, and try two or three shapes with your hair the way you ride; our oval riding helmets page gathers the long oval fits. For hair up, the Skylar has a ponytail cut-out, and One K refit liners change the fit for a bun or pony.
In fairness
If a KASK already fits your very round head, keep it as your benchmark and try the Trauma Void EQ3 NEOZ and Lynx side by side with it before you switch.Helmet fit
Helmet fit to head is a big factor in my decision making. I wanted a KASK but they don't fit my head at all.
Equinavia dial-fit helmets
The dial system is great for someone like me who is between sizes.
In fairness
What KASK does well
KASK is known for a clean hunter profile and a wide size run, and riders who love theirs have good reasons.
If you fit one centimeter size exactly, KASK lists the Star Lady Hunter in 13 sizes from 51 to 63 cm.
If you like a natural-fiber liner, KASK lists merino wool padding with click-in liners that wash and swap.
If you want a light helmet, KASK lists the Star Lady Hunter at 580 grams and the Dogma XC at 520 grams.
If your head is very round and a KASK already fits you, trust that fit and try any new helmet against it.
KASK vs the helmets we carry: your questions
What is the difference between KASK and One K helmets?
KASK makes the Star Lady, Dogma and Kooki Lady with click-in merino liners, and KASK's own pages for the Star Lady Hunter and Dogma XC list no MIPS. One K's MIPS CCS Avance Wide Brim and Defender come in Regular/Round and Long Oval shells with refit liners. Measure your head, then try a One K in the shape that matches.
CloseKASK vs Trauma Void: which fits my head shape?
Fit depends on head shape, so try both. Trauma Void describes the Lynx Smooth Top as a round fit in small, medium and large with a dial at the back, while KASK sizes in single centimeters from 51 to 63. Try the Lynx Smooth Top and the EQ3 NEOZ.
CloseHow do the helmets we carry rate at Virginia Tech?
Virginia Tech's 2026 equestrian table rates the Trauma Void NEOZ EQ3 at 4 stars, 6th of 54, and the Trauma Void Pardus MIPS, Equinavia Gardian and Equinavia Skylar at 3 stars, 18th, 20th and 26th. Virginia Tech does not measure fit, so try any helmet on.
CloseDo KASK helmets have MIPS?
KASK's own pages for the Star Lady Hunter and Dogma XC list no MIPS. Helmets we carry that list MIPS include the Trauma Void Lynx Smooth Top and EQ3 NEOZ, the Equinavia Crown MIPS and the One K MIPS CCS Avance Wide Brim.
CloseWhich of these helmets works with my hair up?
Look for a dial fit, a ponytail cut-out or refit liners: the Equinavia Skylar has a ponytail cut-out and a dial, the Gardian adjusts with a dial, and One K sells refit liners. Try any helmet on with your hair the way you ride and check that it sits level and snug.
CloseWhere can I read more comparisons like this?
Riders comparing KASK with the helmets we carry also read these pages: the KASK alternatives guides, what riders try when a Champion, Charles Owen, Tipperary or Samshield is hard to find, and more head-to-head comparisons.
- Shopping for alternatives? KASK helmets
- KASK Star Lady alternatives: the sleek show and hunter look
- Champion helmets no longer sold in the US? Alternatives
- Can't find Charles Owen? Alternatives
- Shopping for Alternatives? Tipperary Helmets and Vests
- Shopping for alternatives: Samshield helmets
- Charles Owen vs the helmets we carry: Trauma Void, One K, IRH, Equinavia and Troxel
- Samshield vs Trauma Void: fit, price and ratings
- Miss Shield alternatives: wide-brim helmets to try
Brands we carry
Helmet brands to try next to a KASK
Every helmet on this page comes from a brand we carry: Trauma Void, One K, Equinavia and IRH.
How we built this guide: KASK details are from KASK's own Star Lady Hunter and Dogma XC pages, checked November 2026. Trauma Void, One K, Equinavia and IRH details are from their product listings, checked November 2026. Ratings are Virginia Tech's 2026 equestrian table, checked October 2026. Rider words are quoted as posted.