18 Years Old Unisex Hoodie

Eighteen, but make people do the maths first.

The 18 Years Old Unisex Hoodie by Garrari puts a clever spin on the classic 18th birthday outfit. Instead of simply printing the age, the design uses √324 = 18, followed by “Years Old” — a simple little equation that makes the milestone more fun.

It is a great pick for an 18th birthday party, winter birthday dinner, cake cutting, college celebration, birthday trip or photoshoot. The clean mathematical graphic keeps it playful without looking overly decorated, so it is easy to wear throughout the celebration and afterwards too.

The comfortable unisex hoodie fit makes it especially useful for cooler birthday plans, evening celebrations and winter birthdays. Available in Maroon, Black and Navy Blue.

It also makes a fun 18th birthday gift for a brother, sister, son, daughter, boyfriend, girlfriend, friend or anyone who enjoys maths, science or clever typography.

Is this hoodie specifically for someone turning 18?

Yes. The square root of 324 equals 18, so the design is made specifically around an 18th birthday.

What does the graphic mean?

The design shows √324, which equals 18, followed by “Years Old.”

Can both men and women wear it?

Yes. It comes in a unisex hoodie fit.

Is it suitable for a winter 18th birthday?

Yes. The hoodie format makes it particularly useful for cooler weather and evening birthday plans.

Would this make a good 18th birthday gift?

Absolutely. It works especially well for someone who likes maths, science, clever graphics or minimal birthday designs.

Which colors are available?

The 18 Years Old Unisex Hoodie is available in Maroon, Black and Navy Blue.

Can it be worn for an 18th birthday photoshoot?

Yes. The bold mathematical graphic reads clearly in photos and gives milestone birthday pictures a different look from a standard age-number tee.

How should the printed hoodie be cared for?

Wash in cold water, avoid bleach and do not iron directly over the printed design.

Explore More Fits
Prefer the same 18 Years Old design in another style? Explore the 18 Years Old Unisex T-Shirt or 18 Years Old Oversized T-Shirt.

Explore More Birthday T-Shirt & Hoodie Styles
Discover more Garrari Birthday T-Shirts & Hoodies for 18th birthdays, milestone celebrations, birthday parties, photoshoots and gifting.

MADE IN INDIA

We ship across India.

Standard Shipping is free, and orders are usually dispatched within 1–4 business days.

Express Shipping is available at ₹200 extra. With Express Shipping, your order is dispatched within 24 hours, excluding Sundays and public holidays.

After dispatch, delivery usually takes 5–6 business days depending on your location.

You will receive a tracking link once your order is shipped.

Return, refund, or exchange requests must be raised within 3 days of delivery by emailing us at garrariindia@gmail.com.

All requests are subject to review and approval. Items must be unused, unwashed, unworn, with tags, and in their original packaging.

Custom products, concert/artist merchandise, artist-based designs, and occasion-specific/made-to-order T-shirts are not eligible for size exchanges, returns, or refunds.

For full details, please read our Return & Refund Policy.