Jay Graber Mundus Sine Caesaribus Shirt

Men
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Size Guide

Size Chart

SIZE WIDTH LENGTH
S 18 in 28 in
M 20 in 29 in
L 22 in 30 in
XL 24 in 31 in
2XL 26 in 32 in
3XL 28 in 33 in
4XL 30 in 34 in
5XL 32 in 35 in
  • 5.3-ounce, 100% cotton (99/1 cotton/poly (Ash) & 90/10 cotton/poly (Sport Grey), 50/50 cotton/poly (Dark Heather)
  • Heavyweight classic unisex tee
  • Taped neck and shoulders; Tearaway label
  • Made with sustainably & fairly grown USA cotton
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
XS 17.5 in 27 in
S 19 in 28 in
M 20.5 in 29 in
L 22 in 30 in
XL 24 in 31 in
2XL 26 in 32 in
3XL 28 in 33 in
4XL 30 in 34 in
  • 4.3 oz, 100% ring spun combed cotton jersey
  • Heather Gray 90% cotton/10% polyester; Fabric laundered
  • 32 singles for extreme softness; 1x1 baby rib-knit set-in collar
  • Care: Machine wash cold; Tumble dry low
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
S 20 in 26 in
M 22 in 27 in
L 24 in 28 in
XL 26 in 29 in
2XL 28 in 30 in
3XL 30 in 31 in
4XL 32 in 32 in
5XL 34 in 33 in
  • 8 oz; 55% cotton/45% polyester
  • Air jet yarn for a softer feel and no pilling
  • 1x1 athletic rib cuffs and waistband with spandex; Double-needle stitching
  • Care: Machine wash cold; Tumble dry low
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
S 20 in 26 in
M 22 in 27 in
L 24 in 28 in
XL 26 in 29 in
2XL 28 in 30 in
3XL 29 in 32 in
4XL 32 in 33 in
5XL 34 in 34 in
  • 8 oz; 50% cotton, 50% polyester (Fabric composition may vary by color)
  • Heavyweight classic unisex tee
  • Two-ply hood with grommets, dyed-to-match drawcord & low-pill fleece
  • Double needle stitching; Pouch pocket; Unisex sizing
  • Care: Machine wash cold; Tumble dry low
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
S 18 in 28 in
M 20 in 29 in
L 22 in 30 in
XL 24 in 31 in
2XL 26 in 32 in
3XL 28 in 33 in
4XL 30 in 34 in
5XL 32 in 35 in
  • 6-ounce, 100% US cotton
  • Heavyweight classic unisex tee
  • Non-topstitched, classic width, rib collar
  • Taped neck and shoulders
  • Unisex sizing; consult size chart for details
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
S 18 in 28 in
M 20 in 29 in
L 22 in 30 in
XL 24 in 31 in
2XL 26 in 32 in
3XL 28 in 33 in
4XL 30 in 34 in
5XL 32 in 35 in
  • Premium 32 singles Tri-Blend Raglan T-Shirt
  • 4.3 oz; 50% polyester/25% combed ringspun cotton/25% rayon jersey
  • Fabric laundered for reduced shrinkage
  • Care: Machine wash cold; Tumble dry low
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
XS 16.25 in 26 in
S 18.25 in 27 in
M 20.25 in 28 in
L 22.25 in 29 in
XL 24.25 in 30 in
2XL 26.25 in 31 in
3XL 28.25 in 32 in
  • 4.2 oz., 100% combed and ringspun cotton; 30 singles
  • Athletic Heather: 90/10 Airlume combed and ring spun cotton/poly
  • Triblend Colors: 3.8-ounce, 50/25/25 poly/Airlume combed and ring spun cotton/rayon, 40 singles
  • Dark Grey Heather: 4.2-ounce, 52/48 Airlume combed and ring spun cotton/poly, 32 singles
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
S 17.25 in 25.5 in
M 19.25 in 26 in
L 21.25 in 27 in
XL 23.25 in 28 in
2XL 25.25 in 28.5 in
3XL 27.25 in 29 in
  • 5.3oz 100% preshrunk cotton
  • (99/1 cotton/poly (Ash), 90/10 cotton/poly (Sport Grey), 50/50 cotton/poly (Dark Heather)
  • Feminine 1/2 inch rib mid scoop neck; sideseamed with slightly tapered Missy fit
  • Double-needle stitching throughout; seamless rib at neck
  • Decoration Type: Digital Print
SIZE WIDTH LENGTH
XS 15.25 in 24.72 in
S 16.25 in 25.35 in
M 17.25 in 25.98 in
L 18.25 in 26.61 in
XL 19.25 in 27.24 in
2XL 21.25 in 27.87 in
3XL 22.25 in 28.50 in
  • 4.3 oz, 100% combed ring-spun cotton jersey; Fabric laundered
  • Heather Gray 90% cotton/10% polyester; 32 singles for extreme softness
  • Side Seamed; Shoulder to Shoulder Taping
  • Slim Fit, please refer to size chart for actual garment measurements
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
XS 14 in 27 in
S 15 in 27.5 in
M 16 in 28 in
L 17 in 28.5 in
XL 18 in 29 in
2XL 19 in 29.5 in
  • 4 oz, 60% combed ring-spun cotton/40% polyester jersey; 30 singles
  • Self-fabric binding on neck and armholes
  • Fabric laundered for reduced shrinkage
  • Fitted Style; We suggest sizing up
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
YXS 16 in 20.5 in
YS 17 in 22 in
YM 18 in 23.5 in
YL 19 in 25 in
YXL 20 in 26.5 in
  • 5.3-ounce, 100% cotton
  • (99/1 cotton/poly (Ash) & 90/10 cotton/poly (Sport Grey), 50/50 cotton/poly (Dark Heather)
  • Non-topstitched, classic width, rib collar
  • Taped neck and shoulders
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
YXS 13.75 in 19 in
YS 15.25 in 20.5 in
YM 16.75 in 22 in
YL 18.25 in 23.5 in
YXL 19.75 in 25 in
  • 4.3 oz, 100% combed ringspun cotton fine jersey
  • Heather Gray 90% cotton/10% polyester 32 singles
  • Fabric laundered for reduced shrinkage
  • Side-seamed; 1x1 baby rib-knit set-in collar
  • Decoration type: Digital Print
 
SIZE WIDTH LENGTH
YXS 15 in 19.25 in
YS 16 in 21 in
YM 17 in 22.75 in
YL 18 in 25 in
YXL 19 in 27.25 in
  • 5.2-ounce, 100% ring spun combed cotton
  • Rib knit neck; Tag-Free Label
  • Colorblock ¾ raglan sleeves
  • Curved & covered hem
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
YXS 16 in 19.75 in
YS 17 in 21.25 in
YM 18 in 22.5 in
YL 19 in 24 in
YXL 20 in 25.5 in
  • 7.75-ounce, 50% cotton, 50% polyester
  • No drawcord on kids' hoodies
  • 1x1 rib knit cuffs & waistband with spandex; Front pouch pocket
  • We suggest ordering one or two sizes up for a fuller fit; Please refer to size chart for actual garment measurements
  • Decoration type: Digital Print
SIZE WIDTH LENGTH
YS 17 in 22 in
YM 18 in 23.5 in
YL 19 in 25 in
YXL 20 in 26.5 in
  • 5.3 oz. 100% USA cotton
  • Taped shoulder-to-shoulder, Double-needle stitching throughout, ribbed cuffs
  • We suggest ordering one or two sizes up for a fuller fit; Please refer to size chart for actual garment measurements
  • Made with sustainably and fairly grown USA cotton
  • Decoration type: Digital Print
  • $0.00
Quantity:
Estimated arrival: Place your order today (standard shipping method) to receive the product(s) within Apr 01 - Apr 08

Products are fulfilled and shipping from the

Mar 25

Mar 27 - Mar 31

Apr 01 - Apr 08

Category:

Jay Graber’s Mundus Sine Caesaribus Shirt Represents a New Era of Social Media

The Jay Graber Mundus Sine Caesaribus Shirt by Jay Graber, the CEO of Bluesky, has quickly become a must-have item for those who support decentralization in the digital age. The phrase, which translates from Latin to “A world without Caesars,” speaks directly to Bluesky’s mission of creating a decentralized social media platform, free from the control of a single entity or individual. This shirt is a visual representation of Graber’s stance on the future of the internet and how platforms should operate.

Jay Graber Mundus Sine Caesaribus Shirt
Jay Graber Mundus Sine Caesaribus Shirt

The shirt is made from high-quality cotton, ensuring both comfort and durability for everyday wear. The sleek black design is highlighted by the bold Latin phrase across the chest, offering a minimalist yet powerful statement. Available in various sizes, the shirt is suitable for fans of the decentralized web, as well as anyone interested in supporting a movement that seeks to give users more control over their digital experiences.

Jay Graber Mundus Sine Caesaribus Sweatshirt
Jay Graber Mundus Sine Caesaribus Sweatshirt

Jay Graber debuted the shirt at the 2025 South by Southwest (SXSW) conference, which made headlines due to its timely release. The shirt serves as a counterpoint to a similar shirt worn by Meta CEO Mark Zuckerberg, which read “Aut Zuck aut nihil” (“Either Zuck or nothing”). Graber’s choice of phrase reinforces the idea that Bluesky offers an alternative to centralized platforms, emphasizing freedom from corporate control in the digital realm.

Jay Graber Mundus Sine Caesaribus Hoodie
Jay Graber Mundus Sine Caesaribus Hoodie

By wearing the Jay Graber Mundus Sine Caesaribus Shirt, you’re not just expressing support for a new social media platform; you’re also making a statement about the future of the internet. It’s a great way to show solidarity with the vision of a decentralized, user-controlled online space. The shirt is a conversation starter and a symbol of the ongoing push for change in the digital world.

The Jay Graber Mundus Sine Caesaribus Shirt is available for purchase online, and it comes in a range of sizes to fit every fan. Get yours today and join the movement toward a freer, more open internet, as envisioned by Jay Graber and Bluesky. This shirt is more than just fashion – it’s a symbol of change and innovation in the world of social media.

How long does it take for my order to arrive?

  • We need 3 - 5 business days to process your order and send it out (not including weekend and holidays)
  • Your order will arrive approximately 5-7 business days after it's shipped (except wooden products). We use different shipping partners, but the final delivery is usually via USPS.
  • For international orders please allow 2-4 weeks for delivery. The final delivery is usually via your local postal service.

Shipping time for 3D Printed Products:

  • United shipping time: 7-14 Business days
  • International Shipping time: 15-20 Business days

Shipping time for Canvas Wall Art:

Economy

  • $7.99 for order price under 50$
  • $9.99 for order price over 50$ and under 100$
  • $14.99 for order price over 10$ and under 200$
  • Free shipping for order price over 200$

Ground

  • $16.95 for order price under 49$
  • $21.95 for order price over 50$ and under 69$
  • $29.95 for order price over 70$ and under 139$
  • $49.95 for order price over 140$

2 Day

  • $24.95 for order price under 49$
  • $34.95 for order price over 50$ and under 69$
  • $49.95 for order price over 70$ and under 139$
  • $79.95 for order price over 140$

Overnight

  • $49.95 for order price under 49$
  • $59.95 for order price over 50$ and under 69$
  • $89.95 for order price over 70$ and under 139$
  • $139.95 for order price over 140$

Here’s how we break down our shipping prices:

  • $7.99 for order price under $49.99
  • $9.99 for orders from $50 to $99.99
  • $14.99  for orders from $100 to $199.99
  • Free Shipping for orders over $200
Shipping time for Items shipping internationally (UK, CA, AU):
  • $9.99 for an order price under $49.99
  • $14.99 for orders from $50 to $99.99
  • $16.99 for orders from $100 to $199.99
  • $18.99 for orders from $200 to $399.99
  • Free ship for orders over $400