Key West Mile Zero sun shirt with tropical beach design, UPF 50+ protection, short sleeve.

White Key West Sun Shirt with Mile Zero graphic, UPF 50+ short sleeve design.

Mile Zero

UPF 50+ Short Sleeve Sun Shirt

Price range: $40.00 through $45.00

Short and Sweet Adventures Await with Our Mile 0 Short Sleeve!

Hit the ground running—or sunbathing—at Mile 0 with our short sleeve sun shirt. It’s the swim shirt that says, “I’m here for a good time and a long time,” without the sunburn. With quick-dry fabric that’s as refreshing as the ocean spray, you’re in for a shirt that’s as essential to Key West as sunscreen and sandals. Make every moment count under the sun, from Mile 0 to wherever the waves take you.

Key Benefits of Our Sun Shirts:

Broad Spectrum Sun Protection: Blocks 98% of harmful UVA and UVB rays
Moisture-Wicking & Quick-Drying: High-performance poly fabric
Seamless Comfort: Design is set into the fabric for a soft seamless feel

Choose Your Favorite:

Color

Size

XS
SM
MED
LG
XLG
2XLG

Clear

View the size guide

Order today — est. delivery Sep 18–24 (made to order, 5–7 business days + 3–5 shipping)

Available in:

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Free shipping on orders over $75
30-day easy returns & fit exchanges
Designed & shipped from Key West, FL

SKU: kwsns-mile0-uvss Category: Short Sleeve Sun Shirts Tag: Key West

Part of: Key West Shirts & Apparel Short Sleeve Sun Shirts

About the Mile Zero design

US Route 1 runs 2,369 miles from Maine and ends at a green sign on Whitehead Street in Key West: Mile 0. This design is that sign. It is for people who made the whole drive, people who live at the end of the road, and anyone who likes the idea of having nowhere further to go. Available across every style we make, from sun hoodie to snapback.

Description

UPF 50+ Sun Shirt — Lightweight Performance & All-Day UV Protection

Premium UPF 50+ sun protective clothing engineered for fishing, boating, beach days, and hiking. Breathable, quick-dry, and built for heat and humidity.

UPF 50+ Protection: Blocks 98% of UVA/UVB for reliable, all-day coverage.
Lightweight Performance Knit: Soft, breathable, and comfortable in high temps.
PURE-TECH® Moisture-Wicking: Lifetime wicking keeps you cool and dry.
M-SHIELD® Odor Control: Zinc-based technology helps shirts stay fresh longer.
Water & Land Ready: Quick-dry and snag-resistant for kayaking, sailing, fishing, and travel.
Colorfast & Durable: Resists fading from sun, salt, and chlorine to maintain shape and color.
Easy Care: Machine wash, quick-dry, no fuss—ready for tomorrow’s adventure.

Suggested Use: An Everyday Sun-safe Layer • Work • Not Work • Fishing • Boating • Beach • Sports • Travel • Relaxing

Fit & Size: Measure under the arm across the chest and compare to our chart. When between sizes, size up for a relaxed fit.
Size Guide

FAQ

What does UPF 50+ mean?
UPF 50+ fabric blocks at least 98% of UVA and UVB rays for the highest-rated apparel protection.

Do I need sunscreen under the shirt?
Use sunscreen on exposed areas (face, neck, hands). Covered areas are well-protected by the UPF 50+ fabric.

Is it good for saltwater and pools?
Yes—our colorfast performance knit is designed to resist fading from sun, salt, and chlorine.

Care: Machine wash cold with like colors. Do not bleach. Tumble dry low or hang dry. Do not iron.

Guarantee: Love it or exchange it—hassle-free fit exchanges and fast support.

Additional information

Weight	0.5 lbs
Color	Arctic Blue, Pearl Grey, White
Size	XS, SM, MED, LG, XLG, 2XLG
Style	UPF 50+ Performance Shirt Short Sleeve Crew
Brand	Key West Sun Shirts