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Color
Size

Free Shipping
Price Match
Easy Returns
Licensed Opticians
Ship Date
- New colorways will not start shipping until 3/15/2027
Protection
- MIPS® Safety System reduces rotational forces caused by angled impacts to the head
- Lightweight in-mold construction fuses the exterior shell and EPS foam for a one-piece design that's lightweight and durable
- CPSC and CE EN 1078, and AS/NZS2063 certified
Fit / Integration
- Two sizes available: Youth X-Small (48-52cm, age range: 4-8); Youth Small (51-55cm, age range: 8-12)
- Adjustable dial fit system for a customized fit
- AirEvac™ ventilation system integrates with Smith eyewear for fog-free lenses
Features
- 12 fixed vents for consistent airflow
- Integrated Visor
- Performance comfort liner
- Lightweight, low-bulk single-layer webbing
- Weight (Size M): 310 g
Description
Sidewalk, pump track or trail, inspire your little ripper with some big kid style. The Smith Sidekick Jr. Mountain Bike Helmet packs classic MTB style and Mips® Safety System crash protection into a helmet for the youngest dirt riders. From the visor to the vents and extended back coverage, it has all the design features of the big kid helmets. The right fit is key, so it's available in two sizes and includes our dial-adjustable system to fine tune fit and comfort.
Color Details
Color Code
9KSColor Description
Matte Black
Color Code
2T5Color Description
Matte Lollipop Fade
Color Code
215Color Description
Matte Blaze
Color Code
215Color Description
Matte Blaze
Color Code
2P3Color Description
Matte Forest
Color Code
477Color Description
Matte Playground
Color Code
2P3Color Description
Matte Forest
Color Code
477Color Description
Matte Playground
Color Code
2T5Color Description
Matte Lollipop Fade
Color Code
9KSColor Description
Matte Black
Size Details
Size
YS
Size
YXS
Size
YS
Size
YXS
Size
YS
Size
YXS
Size
YXS
Size
YS
Size
YS
Size
YXS
California Proposition 65 Proposition 65 is a California regulation that requires special warnings to be presented to customers if a product contains certain quantities of chemicals or toxicants known to the State of California to cause cancer, birth defects, or other reproductive harm. The following warning applies to the products linking to this page:
WARNING: Reproductive Harm – https://www.p65warnings.ca.gov/Free Shipping within the contiguous US only (excluding Hawaii and Alaska) on all Orders over $100.
At DesignerOptics.com we are committed to the highest quality of service.
We ship products to all 50 US states as well as to many other countries around the world. We take all the measures to ship our items in a timely manner, directly to your door, almost anywhere in the world.
In stock products usually ship within two business days, but may take up to five business days*. When an order ships you will receive a confirmation email with the tracking information. You can also track your order by logging into your account.
We provide FREE SHIPPING on all orders over $100 We also offer overnight and second day delivery shipping options. Please note that when using next day or second day delivery it still takes 48 to 72 Business hours for the order to be processed.
The Designer Optics Low Price Guarantee is simple:
Designeroptics.com matches the price of all retail competitors and major online retailers.
How it works:
Place the frames in your cart
Before placing your order in add the following the comments box, Add the URL (web address) of the page where you found the lower-priced item,
Your credit card will not be charged until we have confirmed with you by phone or by email that your item qualifies for our Price-Match Guarantee.
Please Follow those easy steps for returns
1- Please fill out this form Return Authorization Form to get an RMA # you will receive a RMA # with instruction on how to return them within 48 to 72 Business hours from the time you submitted the form. Wait for our confirmation e-mail before shipping back the return
2- Send the product back to us following the instructions indicated in our e-mail and to the address we will provide you.
3- Make sure to confirm with us via e-mail the shipping date, the shipping service you used and the tracking number whenever you have
4- Include details of the return and how you would like for us to go about it (refund, store credit, exchange, etc). Designer Optics is not responsible for items damaged along the way.
Please allow us 3 to 5 business days from when items are received for us to process the refund. The amount to be refunded will not include shipping charges. if the order consists of 3 or more frames we will charge a 20% Restocking fee. otherwise only the shipping will be deducted.
Some exclusions may apply. Please note prescription lenses are final sale. We also do not accept returns on beauty products due to health and safety concerns. For more information please go to Returns
At Designer Optics, our skilled and experienced lab opticians play a crucial role in ensuring the quality and accuracy of your eyewear. With over 30 combined years of experience and full licensure, they review each prescription carefully and are equipped to answer any questions you may have.
Our state-of-the-art lab is equipped with the latest technology and equipment, including advanced edging and cutting technology, to produce lenses that are precise and accurate. Whether you need full frame or rimless lenses, our team is dedicated to providing the best possible results.
For personalized support, simply send an email to Support@designeroptics.com to request a call back from one of our friendly opticians.



