•Sizing & Fit
Men’s vs. Women’s Performance Fit: What’s the Difference?
Stop buying "unisex" gear. Learn why "Shrink It and Pink It" fails and how gender-specific cuts improve performance.
SleeveShirts Blog
•Running & Performance
Running Essentials: Minimizing Chafing and Overheating
Friction x Moisture = Chafing. Discover why cotton is your worst enemy and the tech features that save your skin at mile 20.
•Fishing & Outdoors
Fishing in the Heat: How to Stay Cool and Sun-Safe on the Water
Water reflects 25% of UV rays. Learn why "The Double Dose" of sun makes fishing dangerous and how to dress to survive the heat.
•Gear Buying Guide
Top 5 Features to Look for in a Summer Sun Hoodie
Don't buy the wrong gear. From "Scuba Hoods" to flatlock seams, here is the checklist for the perfect summer performance shirt.
•Travel & Hacking
Travel Light: Packing for a Week with Only 3 Shirts
Stop paying baggage fees. Discover the 3-shirt "Capsule Wardrobe" strategy that allows you to travel indefinitely with just a carry-on.
•Hygiene & Fabric Care
Why Do My Gym Clothes Smell? The Science of Odor
Even after washing, your gym clothes can still stink. Learn the scientific reason why polyester retains odor (the Rebloom effect) and the 3 steps to fix it.
•Health & Safety
Sunscreen vs. Sun Shirts: Which Is Better for Your Skin?
Stop reapplying every two hours. Discover why dermatologists actully recommend UPF clothing over sunscreen for consistent, broad-spectrum protection.
•Hiking & Backpacking
The Ultimate Guide to Hiking Shirts: Why "Cotton Kills" on the Trail
Discover why professional hikers ditch cotton for synthetic and merino wool. A complete guide to choosing the best hiking shirt for safety.
•Science & Technology
The Science of UPF 50+ Fabrics: How SleeveShirts Block Harmful UV Rays
Discover the physics behind how UPF fabrics protect your skin. We dive deep into the spectrum of sunlight, how absorption works at a microscopic level, and why a simple cotton t-shirt isn't enough.
•Material Science
Moisture-Wicking Magic: Why SleeveShirts Stay Dry and Comfortable
Why does your cotton t-shirt feel like a wet sponge while your gym gear stays dry? We break down the physics of capillary action and hydrophobic fibers.
•Material Engineering
Lightweight Fabrics Unleashed: The 130gsm Advantage
Why 130gsm is the perfect weight for UPF clothing. We explore the physics of "The Iron Triangle" between breathability, durability, and sun protection.
•Sustainability
Sustainable Fabrics in SleeveShirts: Eco-Friendly Innovations for the Future
A deep dive into the science of recycled polyester (rPET), the chemistry of sustainability, and global standards like GRS and Oeko-Tex.
More expert guides coming soon.