Nutcase Baby Nutty Review

A high-quality and adorably fun choice for babies and young toddlers, the Nutcase Baby Nutty’s flatter back makes it especially suited for riding in bike trailers or child bike seats. Quite possibly the cutest helmets on the market for boys and girls, the Baby Nutty is also one of the safest. Now featuring MIPS safety technology, this little helmet has an impressive resume. Read the review below for all the details!

Toddler smiling and wearing the Nutcase Baby Nutty bike helmet


Nutcase Baby Nutty

RATING: Highly Recommended


BEST FOR: Babies and toddlers riding in child bike seats, trailers, and balance bikes. Not in hot climates.

SIZE: 48 – 52 cm

ADJUSTMENT SYSTEM: Elastic adjustment

WEIGHT: 280 g



  • Comes standard with MIPS safety technology
  • Lightweight and durable in-mold construction
  • CPSC 1+ certified with extended protection for babies
  • Soft chin pad and magnetic “no pinch” buckle
  • Flat back for use in bike trailers and baby bike seats
  • Overall exceptional quality


  • No side vents can make for sweaty heads in hot climates
  • MIPS anchors can snap longer hair
  • Elastic adjustment can’t get as snug a fit on some heads

Nutcase Baby Nutty Review – Results of our Test Rides

Toddler riding woom 1 plus balance bike and wearing Nutcase Baby Nutty helmet with the Strawberry pattern

A good helmet for babies and young toddlers is hard to come by.  Ideally, it should be lightweight, easily adjustable, and fit snuggly so it’s not flopping around all the time.  We’re all too familiar with the tantrums toddlers can throw if something is uncomfortable!

Fun, fresh, and a little funky, Nutcase’s newly designed Baby Nutty is certainly one of the best bike helmets on the market.  Significantly lighter than their youth helmets, and with adorable designs for boys and girls, the Nutcase Baby Nutty is one of our favorites for young toddlers. Based on our experiences and testing, it’s likely a better fit for toddlers than for babies.

Baby Nutty Sizing

3 year old wearing Nutcase Baby Nutty helmet while sitting with her dog

The Baby Nutty has a head circumference range of 48 – 52 cm. For a baby helmet this is on the high end. Most baby helmets are as small as 44 cm, 45 cm, or 46 cm. We’ve never seen a baby helmet start at 48 cm, because most babies don’t have heads that large. Realistically, this is more of toddler helmet.

Just make sure to measure your baby’s head before purchase. As with any helmet, no matter if it’s called Baby, Toddler, or Youth, your child’s head circumference is key to determining if the helmet will fit your child.

Baby Nutty vs Little Nutty Sizing

Collage - side by side comparison of 2 year old in Nutcase Baby Nutty and Nutcase Little Nutty helmets
Baby Nutty vs. Little Nutty

Both the Baby Nutty and the Little Nutty have the same head circumference range: 48 – 52 cm. However, we found the Baby Nutty to be significantly more narrow.

The Baby Nutty is also much lighter, coming in at 280 grams vs. the Little Nutty’s 460 grams. The Little Nutty is far too heavy for a baby with developing neck strength, which is one primary reason Nutcase created a lighter version of their smallest helmet.

Elastic Adjustment Makes a Precise Fit More Tricky

While most helmets in the Baby Nutty’s price range have a dial-adjust knob to dial in a precise fit for your child (including the Little Nutty), the Baby Nutty has an elastic band adjustment system.  This system worked great for some of our testers, but was not great for others.

Back of Nutcase Baby Nutty showing the elastic stretch adjustment band

We tried the Baby Nutty on five different toddlers who had head circumferences between 48 cm and 52 cm. The Baby Nutty was a good and snug fit for our toddlers with head circumferences of 49.5 cm and 50.5 cm.

With our three toddlers with 49 cm heads, things got less certain. One toddler it fit great. Another was a bit too loose. The third toddler was far too loose and not safe. While there is no helmet that fits every head perfectly, we found the elastic system to be less precise than a traditional dial-adjust, like found on the Little Nutty toddler helmet.

As you can see below, with those toddlers that the Baby Nutty didn’t fit well, the elastic band didn’t make contact with the back of their head. It was more at the nape of their neck. I could easily fit my fingers between their head and the strap. (I am not stretching the elastic here.) Without any pressure against the head, this resulted in a “too loose” fit.

Back of Nutcase Baby Nutty is too loose for some kids' heads

We love the Baby Nutty helmet, and for kids that it fits, it’s a fantastic option. If you buy a Baby Nutty and it’s not a snug fit, we encourage you to try the Little Nutty with a dial adjust.

Important Note: The sizing sticker inside the helmet and the sizing indicated on the box show the head circumference range in inches and centimeters. The inches are wrong and should be ignored. The 48 cm – 52 cm measurement is correct.

CPSC 1+ Extended Coverage

There are two different CPSC certifications for helmets. Once is CSPC 1+ for babies, and the other is CSPC 5+ for everyone else. Not all baby-sized helmets are CPSC 1+ certified, but the Baby Nutty is. CPSC 1+ certification requires additional coverage to increase the protection to a baby’s head.

CPSC sticker inside the Nutcase Baby Nutty

This certainly is a nice-to-have, but also isn’t a make-or-break. If the CPSC 1+ makes you feel better, great! But if your toddler’s head is larger and you need to get the CPSC 5+ certified Little Nutty, it’s not a big deal and is completely safe.

Flat Back for Use In a Trailer or Child Bike Seat

Toddler in a bike trailer, laughing and wearing the Nutcase Baby Nutty helmet that looks like a Strawberry.

In addition to being CPSC certified specifically for babies, the shape of the Baby Nutty makes it ideal for babies in trailers or bike seats.  While many helmets are bulky or slightly pointed in the back, the Baby Nutty is flat and smooth.  The flatter surface prevents kids’ heads from being pushed forward by the back of a trailer or bike seat.  

As you can see below, many popular helmets like the the Joovy Noodle come to a point in the back. By comparison, the Baby Nutty is much flatter in the back.

Nutcase Baby Nutty and Joovy Noddle side by side

MIPS Safety Technology

Nutcase upgraded all of their helmets in 2020 to include MIPS safety technology. MIPS (Multi-Directional Impact Protection System) consists of a yellow plastic layer inside the helmet that is anchored in place by four yellow anchors. In the event of a crash, these anchors flex to allow the plastic layer to shift and rotate upon impact. In simple terms, this reduces rotational forces that can cause more severe brain damage.

Interior of the Nutcase Baby Nutty showing the yellow MIPS plastic layer and anchors

While some MIPS systems have those yellow anchors covered by the helmet’s interior padding, the Baby Nutty’s are not covered. Longer hair can snag on the anchors, so be careful when taking off your baby’s helmet.

Magnetic Fidlock Buckle and Chin Strap

We’ve used a lot of helmets with our babies and toddlers. The one feature we are always wishing for is a magnetic buckle. LOTS of bonus points to the Baby Nutty for featuring the “no pinch” magnetic Fidlock buckle!

Nutcase Baby Nutty

Squirming babies and toddlers don’t care that you’re trying to put a helmet on them to keep them safe. And in our experience, they often want to make it as hard as possible for you to get that helmet on them. A magnetic buckle is faster and much less likely to pinch a baby’s neck. (Although no buckle is 100% pinch free, so still be careful!)

As an added preventative measurement against pinching, the Baby Nutty has a wide chin strap pad that acts as a barrier between the buckle and the neck skin.

Side Straps and Locking Sliders

The Baby Nutty’s side straps are flat and soft, which will minimize any potential irritation on the points of contact with the face. The locking sliders (which keep those straps in place) are one of our very favorite features of this helmet!

The side straps need to form a “V” below your child’s ear. This helps keep the helmet centered on the head. The sliders slide up and down the straps so you can adjust them perfectly for your child.

Side shot of Nutcase Baby Nutty showing the side straps coming to a V below a toddler's ear

Most side straps can slip down quite easily, which requires you to re-adjust them often. And unfortunately, even the most safety-conscious parent can forget to re-adjust them if they’re in a hurry! The Baby Nutty’s sliders lock, which makes them much less likely to slide out of place.

Locking side strap slider on the Nutcase Baby Nutty helmet

Limited Ventilation and Sealed Padding

One limitation the Baby Nutty has is its lack of vents.  Although it does have 10 smaller circle vents, it doesn’t offer any side vents and has only two rear vents, which minimizes air flow. The small number of vents, however, is standard with skater-style helmets. If you want a bike helmet with a lot of vents, a skate-style helmet is not your best bet.

Top of Nutcase Baby Nutty, showing five vents

The high-quality sealed padding does help to wick sweat away from the head, and also keeps that sweat trapped instead of dripping down your child’s face.

Interior of Nutcase Baby Nutty helmet showing padding system

Durable In-Mold Construction, NOT Dual-Certified

If you’re familiar with Nutcase helmets, we want to point out that the Baby Nutty is only CPSC certified for bicycle use. All other Nutcase helmets are dual-certified CSPC/ASTM for bicycle and skateboard use. So while the Baby Nutty is a skate-style helmet, it is not meant to be used for skateboarding. (But really, should your baby be on a skateboard? :-))

The upside of this is that the Baby Nutty is much lighter than a skateboard helmet. Hardshell construction skateboard helmets are much heavier than standard bike helmets.

With in-mold construction, the Baby Nutty weighs just 280 grams compared to the hardshell Little Nutty which weighs 460 grams! With babies still developing their neck strength, a lightweight helmet is a must!

Bottom Line

The Nutcase Baby Nutty is an excellent-quality, adorable helmet for toddlers who will be riding in trailers, child bike seats, or riding balance bikes.  Due to its lack of side vents, we do not recommend it for hot climates. Also be aware that the elastic adjustment system may not be tight enough for some small heads.

FTC Disclosure: Affiliate links are included in this review.  No monetary compensation was provided for this review, however, the reviewed product was supplied by the manufacturer or distributor to help facilitate this review. All opinions and images are that of Two Wheeling Tots LLC.  All content and images are copyrighted and should not be used or replicated in any way. View our Terms of Use.


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