Nutcase Perfect Fit - Nutcase Helmets Australasia - I Love My Brain!

Nutcase Perfect Fit



For Bike, Skate


For Bike & Skate, Roller


For Bike, Skate, Roller


For Bike


For Snow, Alpine

Age group

12 - 36 months

Toddlers 3-6 years

6 years to Adult

Teen to Adult

Teen to Adult

Measurements  XXS 47-50cm XS 48-52cm Small 52-56cm, Medium 56-60cm Large 60-64cm

S/M 55-59cm 

L/XL 59-62cm

(Slim shape)

S-M 52-57cm L-XL 58-62cm
Weight AUNZS


368 grams

Small 406 gm, Medium 454 gm Large 500 grams

310 grams

532 - 550 grams


Lightweight Infold & EPS Protection

Hard shell & EPS Protection

Hard shell & EPS Protection

Lightweight Infold & EPS Protection

Hard shell & EPS Protection


Note: Information given is as up-to-date as possible. Details are subject to change.

Important for Fitting Young Children: Both size and weight should be taken into consideration when selecting a helmet for a young child due to 

developing neck strength. Baby Helmets should not be worn by children under 12 months old.

Watch the Nutcase Perfect Fit Videos




How to Fit Your Helmet Right!  

How to measure up

Place tape measure slightly above ear and bring it across the mid forehead completely circling the head about 1 inch above the eyebrows. Do this 2 or 3 times to double check that you have the largest measurement in centimetres. With your largest measurement compare it to the size charts above.

Before riding/skating: Do the push test

Ensure the helmet sits level on the head and does not slide or move freely when you move your head side-to-side. If it moves, the helmet is too large.

Test it side-to-side again and do the push test: When someone places a palm to your forehead they should not be able to push the helmet backwards off your head.

The Gen3 Adjustable Spin Dial at the rear of your helmet should be gently be "dialled in" to create a snug fit. For Gen2 helmets, swap to the thicker pads to make your helmet smaller internally. Or swap to thin pads to make it roomier internally.

If you have a previous model:

  • Gen2 Street helmets come with multiple size pads only
  • Gen2 Little Nutty helmets are fitted with the Adjustable Spin Dial

It is recommended that wearers replace helmets every 2-3 years especially for growing children and when a collision or fall has occurred which may have cracked the internal EPS (grey interior) impact foam.

Important: Do not allow a toddler or child to ride without strap and foam adjustments. For Little Nutty, ensure the Spin Dial adjustment is also made. 

Check for Proper fit

  • The front of the helmet must sit above the brow, straight across the temples.
  • The back of the helmet must not touch the nape of your neck. If it does, it means your helmet may be slipping backwards.
  • The chin strap should be snug but not too tight as to cause discomfort or choking.
  • Securely fasten the chin strap and try to roll the helmet off your head. If the skin on your forehead moves slightly, you have a good fit.
  • The side straps should form a clean triangle encompassing each ear area.
  • Do not over tighten Adjustable Spin Dial.

Release and Waiver of Claims Agreement: In regards to use of any Nutcase Helmet Products, I, the purchaser of and the User of Nutcase Helmets Products (collectively referred to as “You”) represent that one or both of You are over the age of eighteen (18), and that You have read and understood the entire WARNING and will act accordingly. Further, You hereby agree to the fullest extent permitted by law as follows: (1) You acknowledge and represent that Nutcase Helmets have specific certifications for specific helmets and their correct use and it is not implied or expressly warranted to protect You from any degree of contact or impact; (2) You acknowledge that sports involve certain risks, dangers and hazards which can result in serious personal injury and death, as such, You hereby freely agree to assume and accept any and all known risk of injury; (3) You waive any and all claims that You might have or may have in the future against Nutcase Helmets, its associates, distributors and affiliates (collectively referred to as “Nutcase”); (4) You release Nutcase from any and all liability for any loss, damage, injury, or expense that You may suffer, or that your next of kin may suffer, as a result of using any of the Nutcase Helmets Products due to any cause whatsoever, including negligence, and/or a breach of contract regarding the manufacture, installation, performance, use, or adjustment of any Nutcase Products. In the event that any provision of this Release is determined to be invalid, unenforceable or unlawful, such invalidity, unenforceability or unlawfulness shall not affect any other provisions of this Release, and the Release shall be construed as if the challenged provision had never been contained herein.