String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
String Theory
Product mockup
Product mockup
Product mockup
Product mockup
Product mockup
Product mockup

String Theory

Certified String Theorist
Sale price$29.99 Regular price$34.00
Save 12%
For the brilliant minds who solved the universe's biggest mystery: everything really is made of vibrating strings. Soft, comfy 100% ring-spun cotton for unified theories. Physicists guessed. Fiddlers knew all along.
  • Everyday ComfortEveryday Comfort
  • Musician ApprovedMusician Approved
  • Reliable QualityReliable Quality
Color: Black
Size: S
Shirt Size Chart
Refer to images for visual sizing information.

LENGTH WIDTH CHEST
XS (inches) 27 16 31-34
S (inches) 28 18 34-37
M (inches) 29 20 38-41
L (inches) 30 22 42-45
XL (inches) 31 24 46-49
2XL (inches) 32 26 50-53
3XL (inches) 33 28 54-57
4XL (inches) 34 30 58-61
5XL (inches) 35 31 62-65

Shipped before the next verse

Ordered today, on the road within 48 hours.

Made by musicians

If it doesn't get a laugh at camp, it doesn't get printed.

Easy returns, no sad songs

7 days to send it back, no questions asked.

Unify physics and music with this brilliantly clever Unisex Softstyle T-Shirt featuring the "String Theory" design. The smooth, durable fabric offers a blissful wearing experience, making it an ideal choice for year-round fashion. Its classic fit and versatile silhouette seamlessly adapt to any occasion, from rehearsals and science classes to jam sessions, lecture halls, or simply a casual day out. This shirt isn't just a clothing item; it's the greatest crossover in intellectual history, because while physicists spent decades theorizing that the universe is built from tiny vibrating strings, string players have been demonstrating it nightly with nothing but a bow and good intonation. The math is complicated. The music is proof. Great for gifting during holidays, birthdays, graduations, or teacher appreciation, this tee resonates with string players, science lovers, teachers, and anyone who appreciates both smart wordplay and comfort in their everyday wear.

Product features

  • Made from 100% ring-spun cotton for a soft, lightweight feel.
  • Classic crew neckline enhances versatility for any outfit.
  • Ribbed collar retains shape while adding elasticity.
  • Ethically produced with US cotton, certified for safety and quality.
  • Designed to minimize fabric waste with seamless construction.

Care instructions

  • Do not dryclean
  • Do not bleach
  • Tumble dry: low heat
  • Iron, steam or dry: low heat
  • Machine wash: cold (max 30C or 90F), with similar colors

This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!

Fabric: 100% ring-spun cotton (Heather colors contain polyester)

Fabric weight: 4.2 oz./yd.² (142 g/m²)

Fit: Unisex classic fit, true to size

Neckline: Crew neck with ribbed collar

Sleeve: Short sleeve

Construction: Side-seamed, shoulder-to-shoulder taping

Fabric care: Pre-shrunk, machine washable

Print: Fade-resistant, permanent design print

Sizes: S – 2XL

Colors: 15 color options available

Everything is made to order, so here's exactly what to expect.

Processing: 2–5 business days to print and pack. Longer during camp season and holidays; we'll email you if anything slips.

Rates: calculated at checkout based on where you are. No surprises.

Upgrades: faster options appear at checkout where they're available in your region.

Tracking: emailed the moment your order ships.

Delays: weather, holidays and customs are beyond us. We'd hand-deliver with a bow if we could. We'll keep you posted.

International orders: customs fees, duties and import taxes are the buyer's responsibility and aren't included in our prices.

Returns, exchanges and cancellations on non-custom items:

Contact us within 7 days of delivery to start a return, then send it back within 14 days.

Changed your mind? Cancel within 12 hours of ordering.

Return shipping is on you. Items need to come back unworn and in original condition — full refund minus original shipping.

Arrived damaged? Email photos within 7 days and we'll send a replacement. Keep the original.

Custom pieces can't be returned unless they arrive damaged or defective.

Built by musicians. Proving the theory nightly.

Designed for the curious minds and rhythm-makers who know the universe hums in perfect fifths. Every tee blends premium comfort with a personality all its own: soft, effortless, and made to move with you.

Why We Chose This Shirt

  • Premium Bella+Canvas 3001
  • Soft, lightweight, broken-in feel
  • Unisex modern fit
  • Gets even softer with every wash

We chose the Bella+Canvas 3001 because it’s the kind of shirt people reach for first. Soft, lightweight, and comfortably broken-in from day one. Think of your favorite T-shirt that’s been washed and loved for years. If you’re looking for a thick, heavyweight tee, this probably isn’t it… and that’s exactly why we chose it.

VERIFIED CUSTOMER REVIEWS

Real musicians. Real opinions. Zero mercy.

★★★★★

Persephone K. ✓ Verified purchase

Product arrived as described. It was on time and is gonna make an awesome gift! Very happy with my purchase. I would order from this store again!

★★★★★

Newton Albright ✓ Verified purchase

I absolutely LOVE this shirt. It’s so soft, and exactly as described. I would buy again, and likely will buy others.

★★★★★

Vespera M. ✓ Verified purchase

This was my second time buying this shirt. I bought one as a gift and liked it so much I had to get myself one.

★★★★★

Krista F. ✓ Verified purchase

Perfect gift for my physics-loving violinist friend, she thought the pun was genius. Brown color is rich and fabric is soft. Fits true to size.

★★★★★

Elle J. ✓ Verified purchase

Quality is definitely nice, would purchase again

Fits like your favorite song sounds

Join the unhinged crew!

New designs, exclusive offers, and giggles in your inbox.