Frequently asked questions

Measure the head circumference in inches, about one inch above the eyebrows and just above the ears, and match that number to the size chart on the product page. Measure rather than guessing from age: a large two-year-old and a small six-year-old can wear the same size, and the size label on an old helmet does not carry over between brands.

Take the size whose range contains the measurement, and only size up if the measurement sits at the very top of a range. All of our helmets have a rear dial that takes up slack, so a helmet that is slightly roomy can be tightened, while one that is too small cannot be made bigger.

Yes, with the dial backed off. If the measurement is near the top of a size range and your child will wear a thin hat underneath, choose the next size up so the dial is not at the end of its adjustment.

Tighten the dial until the shell sits level with the front rim about two fingers' width above the eyebrows, then rock the helmet forward and back by the front rim. The skin on the forehead should move with the helmet. If the helmet moves and the skin does not, it is too loose.

Standard shipping is free on every U.S. order. There is no minimum spend and no discount code needed — no shipping charge is added at checkout for standard delivery, whatever the size of the order.

Orders are processed within 1-2 business days, then standard delivery takes 3-7 business days within the contiguous United States. Delivery estimates start when the order ships, not when it was placed, and orders placed on a weekend or holiday begin processing the next business day.

Orders ship from our U.S. warehouse, so there is no customs clearance and no import duty for U.S. addresses. You will receive a shipping confirmation email with a tracking number as soon as the order leaves the warehouse.

Yes, at the same free standard rate. Delivery to Alaska, Hawaii and U.S. territories takes 7-14 business days rather than 3-7. We do not ship internationally at this time, and we cannot ship to freight forwarders or package reshipping services.

Usually yes, if the order has not shipped yet. Email support@rrkmart.com as soon as possible with your order number and the corrected address. Once a package is in transit the address cannot be changed, and a package returned to us as undeliverable is refunded for the item price once it arrives back.

You can return it within 30 days of the delivery date for a refund of the item price. Email support@rrkmart.com with your order number and we will reply within 1-2 business days with a return authorization and the return address.

Both. A return within the 30-day window is refunded to your original payment method. If you would rather swap for a different size or color, say so in the same email and we will tell you whether the replacement is in stock before you send anything back.

Email support@rrkmart.com with your order number as soon as possible. Orders are processed within 1-2 business days, so a cancellation is usually possible if the order has not shipped. Once it has shipped, treat it as a return instead.

Contact us within 7 days of delivery with your order number and photos of the item and its packaging. We will send the correct item or a replacement at no charge, or issue a full refund, and we cover the return shipping in these cases.

A bicycle helmet is the right starting point for scooters, balance bikes and trailers, and most families use one helmet across all three. Skateboarding is different: some skate parks ask for the skate standard ASTM F1492 specifically, so check your local requirement before relying on a bicycle helmet for that use.

Replace a helmet immediately after any real impact, even if the shell looks undamaged — EPS foam absorbs energy by crushing and does not spring back. Otherwise most manufacturers suggest replacing a helmet every 3-5 years, sooner if it has been stored in a hot car or left in direct sun for long periods.

Yes. On all three models the comfort padding or liner is removable. Rinse it in cool water with a mild soap and let it air dry away from direct heat. Do not put it in a dryer, and do not immerse the shell or the EPS liner in water.

Most U.S. states require riders under a certain age to wear a helmet on a bicycle, and the age limit and the exact rules vary by state and sometimes by city. We cannot give legal advice for your location — check your state and local rules, and note that some schools and bike programs set their own requirement on top of them.

RRKMART has been making sports, outdoor and play equipment since 2014, with our own factory in Dongguan, China and our company office in Xiamen. Helmets and protective gear are the products we focus on, and U.S. orders are fulfilled from a U.S. warehouse rather than shipped directly from the factory.

Yes. Several color options of the kids helmets are sold as a set with a matching knee-and-elbow pad set, and those are marked as a set in the color selector on the product page. If you only want the helmet, choose a color option without the set label.

Email support@rrkmart.com and include your order number if you have one — it lets us answer in one reply instead of three. We reply within 1-2 business days, Monday through Friday, excluding U.S. public holidays.