Frequently Asked Questions
Everything you need to know about our premium fiberglass-reinforced apparel and accessories.
How do I determine my correct size?
We provide a detailed size chart on every product page. Since our fiberglass-reinforced garments offer a structured fit with less stretch than traditional cotton, we recommend measuring your chest and waist carefully or sizing up if you are between sizes.
What is the standard shipping timeframe?
Domestic orders are typically processed within 2-3 business days. Depending on your location, standard shipping takes 5-7 business days. Expedited shipping options are available at checkout for faster delivery.
How should I care for my ADV Fiberglass garments?
To maintain the structural integrity of the fibers, we recommend hand washing in cold water with mild detergent. Avoid machine drying; instead, lay the item flat to air dry away from direct sunlight.
What is your return and exchange policy?
We offer a 30-day return policy for all unworn items in their original packaging with tags attached. Please note that custom-engineered pieces are final sale unless a manufacturing defect is present.
Do you offer international shipping?
Yes, ADV Fiberglass ships worldwide. International shipping rates and estimated delivery times are calculated at checkout based on the destination country and local customs regulations.
Are your materials sustainably sourced?
We are committed to durability as a form of sustainability. Our fiberglass blends are designed to last significantly longer than fast-fashion alternatives, reducing overall textile waste. We continuously audit our suppliers to ensure ethical manufacturing practices.