JOJU vs. Coolibar vs. BloqUV: Which Sun Shirt Should You Wear?

When it comes to sun shirts, protection is only part of the equation. You also want something that feels elevated, fits beautifully and functions effortlessly from poolside to city street. In this guide, we compare JOJU, Coolibar and BloqUV —three top players in the UPF 50+ space—to help you decide which sunwear brand fits your lifestyle...

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🧾 Quick Comparison Table

Here's a side-by-side comparison of JOJU, Coolibar and BloqUV to help you decide which brand suits your sunwear needs best:

FEATURE JOJU
Coolibar BloqUV
Fabric Italian, luxe, light, soft-stretch
Varies, ZnO line uses cotton/bamboo blend, structured, more subs Nylon/spandex BloqTek™, smooth and performance-forward
UPF rating 500 lab-tested, rated UPF 50+
UPF 50+, lab-tested, some lines infused with zinc oxide
UPF 50+, built into weave, chemical-free, lab-tested
Design aesthetic Editorial, minimal, versatile
Classic, functional, modest
Bold, activewear-centric
Best for Style-conscious sun seekers
Reliable, everyday sun protection High-intensity sports and training
Price point Premium-luxury
Mid-to-premium
Mid-range
Durability Long-lasting, wash-tested
Designed for longevity, particularly in ZnO fabrics Lab-tested for wet/dry UV stability

🎯 Choosing the Right Sun Shirt: Brand Breakdown

Fabric & Feel

JOJU’s Italian fabric offers a rare combination: ultra-light (145 g/m²), four-way stretch and luxury-soft without sheen or plastic feel.


Coolibar's fabrics, particularly their ZnO™ line, tend to feel more structured and substantial—offering reliable sun protection, but often with a denser, less breezy hand than JOJU’s, while


BloqUV’s BloqTek™ fabric is smooth and performance-driven—great for activity but with a more athletic aesthetic and feel.

If you want fabric that flows with your life—and feels like second skin— JOJU leads.


Sun Protection

JOJU’s fabric blocks 99.82% of UV rays and tests at UPF 500 —the highest in the industry. While both competitors advertise UPF 50+, few share lab results with this level of transparency or longevity.

For the most rigorous sun protection without compromise, JOJU sets the standard.


Design & Versatility

JOJU designs for elevated ease: classic colorways and tailored silhouettes that transition beautifully from boat deck to rooftop brunch. 


Coolibar leans classic and conservative. 


BloqUV shines in the gym but feels louder and more niche.

Want something you’ll actually want to wear all day? JOJU delivers quiet luxury.


Price & Value

JOJU is an investment—but one that merges luxury design with elite performance. It’s not fast fashion or overbranded gear. Just timeless, UV-protective essentials that stand the test of time.

🤔 Frequently Asked Questions

What’s the difference between UPF 50+ and UPF 500?

UPF 50+ is the highest label allowed by standard testing. JOJU’s UPF 500 rating reflects lab-measured performance —blocking 99.82% of UVA/UVB rays—even after wear and washing.

Is Coolibar or JOJU better for everyday wear?

Coolibar is great for clinical-grade protection, but JOJU is better for style, comfort and versatility . It’s fashion-forward and functional without sacrificing protection.

Which brand is best for athletes?

BloqUV offers performance-focused features for sports. But if you want performance and polish, JOJU gives you both in a more elevated silhouette.

Does JOJU work for men too?

Absolutely. JOJU’s fit and fabric transcend gender. While our marketing skews feminine, many styles are subtly unisex and universally flattering.

Explore the Collection

Shop UPF 50+ Sun Shirts
→ Why JOJU's Italian Fabric Wins Every Time
Our Founder’s Story: Skincare Meets Style