FAQ

Clear Answers Before You Ride

Frequently Asked Questions

Practical information about Melvenna™ helmets, sizing, safety standards, ordering, shipping, care, returns and customer support.

Last updated: September 22, 2026

Products, Fit & Safety

What types of helmets does Melvenna™ sell?

Our catalog may include helmets intended for riding, commuting, motorsport, cycling or recreational activities. Review the individual product page for intended use, construction, sizing, included accessories and stated certification information.

How do I select the correct size?

Measure the widest circumference of your head according to the product size guide. Compare the result with the chart for the exact model. A helmet should sit level and securely without painful pressure points or excessive movement.

Does every helmet meet the same standard?

No. Standards vary by helmet type, activity and market. Only rely on certifications expressly listed for the exact product. Never assume a helmet designed for one activity is suitable for another.

Can a helmet prevent every injury?

No helmet can prevent every injury or eliminate risk. Correct selection, fit, fastening, inspection, maintenance and responsible use remain essential.

Can I use a helmet after an impact?

Do not continue using a helmet after a significant impact, even if damage is not visible. Energy-absorbing materials may have been compromised.

Orders, Care & Returns

When will my order be processed?

Most in-stock orders are prepared within 1–3 business days after payment verification. Holidays, high-volume periods, presale products and verification reviews may require additional time.

Can I change or cancel an order?

Contact us immediately. We will try to assist before fulfillment begins, but changes and cancellations cannot be guaranteed once processing or shipment has started.

What if my helmet arrives damaged?

Do not use it. Contact us within 7 days of delivery with your order number and clear photographs of the shipping box, label, packaging and helmet.

Can I return a helmet?

Eligible unused and unworn helmets may be returned according to our Return & Refund Policy. Helmets involved in an impact, modified products or products showing use, odor, damage or missing safety components may not qualify.

How should I clean and store my helmet?

Follow the supplied instructions. Generally, use mild soap and water, avoid solvents and excessive heat, dry naturally, and store away from chemicals, direct sunlight, sharp objects and crushing loads.

Company & Support Information

Brand: Melvenna™

Website: melvenna.com

Company: Shenzhen Zhongwang Yilian Technology Co., Ltd.

Owner: Yang Zao

Email: service@melvenna.com

Phone: +86 134 2886 9995

Service Hours: Monday–Friday: 9:00 AM–6:00 PM; Saturday: 10:00 AM–4:00 PM; Sunday: Closed

Address: Unit 2202, Building 1, Hejian Yungu, No. 8 Xinwang Road, Xinsheng Community, Longgang Subdistrict, Longgang District, Shenzhen, China

Melvenna™ and melvenna.com are operated by Shenzhen Zhongwang Yilian Technology Co., Ltd.