Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
Outdoor Research Women's Eclipse Sun T-Shirt
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Women's Eclipse Sun T-Shirt

Regular price$65.00
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Outdoor Research Women's Eclipse Sun T-Shirt 2026

Everyday Versatility, Trail-Ready Performance — the Eclipse Sun T-Shirt delivers lightweight comfort and reliable protection for hiking, running, and exploring in warm, sunny conditions. Made from breathable, bluesign® approved polyester and spandex, it provides UPF 50+ sun protection and ActiveFresh™ odor control for lasting freshness. The quick-drying, moisture-wicking fabric keeps you cool and dry, while movement-mirroring stretch and a relaxed fit ensure full mobility. A bonded neckline, split side hem, and chafe-free construction enhance comfort and durability through long, active days outdoors.

Everyday Versatility, Trail-Ready Performance
"Everyday Versatility, Trail-Ready Performance" — the Eclipse Sun T-Shirt bridges the gap between casual wear and active outdoor use. The shirt looks and feels like a comfortable everyday tee but performs like a technical sun shirt for hiking, running, and exploring. Built for the rider who wants one shirt that works for both trail use and casual wear.
UPF 50+ Sun Protection
"It provides UPF 50+ sun protection" — UPF (Ultraviolet Protection Factor) 50+ is the highest sun-protection rating for clothing, blocking about 98% of UV radiation. The UPF 50+ protection is inherent to the fabric weave (the tight knit blocks UV), so it doesn't wash off or wear off over time. Essential for long days in the sun, high-altitude hiking, and water-based activities where sun exposure is intense.
ActiveFresh™ Odor Control
"ActiveFresh™ odor control for lasting freshness" — ActiveFresh™ is OR's odor control treatment that prevents the growth of odor-causing bacteria on the fabric. The treatment is bonded to the fibers and lasts through the life of the garment. ActiveFresh™ keeps the t-shirt smelling fresh through multiple wears and high-output activities, reducing the need for frequent washing.
bluesign® Approved Polyester/Spandex
"Made from breathable, bluesign® approved polyester and spandex" — the fabric blend is polyester (the main fiber for durability, moisture-wicking, and quick-drying) and spandex (for stretch and recovery). The bluesign® approval confirms the fabric meets strict environmental and safety standards throughout the supply chain.
Quick-Drying and Moisture-Wicking
"The quick-drying, moisture-wicking fabric keeps you cool and dry" — the polyester fabric pulls sweat away from the skin and moves it to the surface where it can evaporate quickly. Quick-drying performance is essential for active use (the shirt doesn't stay wet and heavy after sweating) and for travel (the shirt dries overnight after washing).
Movement-Mirroring Stretch
"Movement-mirroring stretch" — the spandex in the fabric blend provides 4-way stretch that moves naturally with the rider's body during active use. The stretch allows full range of motion for hiking, running, climbing, and any other activity where unrestricted movement matters. The fabric returns to its original shape after stretching, so the shirt doesn't bag out over time.
Relaxed Fit for Full Mobility
"A relaxed fit ensure full mobility" — the Eclipse has a relaxed (not tight, not loose) fit that allows for easy movement and ventilation. The relaxed fit also makes the shirt comfortable for casual wear and accommodates a wider range of body types and activity intensities than a tighter athletic fit would.
Bonded Neckline
"A bonded neckline" — the neckline uses bonded construction (no traditional seam) for a clean, low-profile finish that doesn't chafe or irritate the skin. The bonded neckline is more comfortable against the neck and looks cleaner than a traditional stitched neckline.
Split Side Hem
"Split side hem" — the side hem has a small split that allows the shirt to drape naturally over the hips and provides unrestricted movement at the waist. The split hem is a common feature on active tees that prevents the shirt from riding up during high-output activities.
Chafe-Free Construction
"Chafe-free construction enhance comfort and durability through long, active days outdoors" — the construction is designed to prevent skin irritation during long days of active use. Flat seams, bonded necklines, and tag-free labels all contribute to the chafe-free experience. Critical for multi-hour activities where even small irritations can become major distractions.
Outdoor Research Quality and Infinite Guarantee®
Built by Outdoor Research — a Seattle-based outdoor gear company with decades of experience in technical apparel — the Eclipse Sun T-Shirt is backed by OR's Infinite Guarantee® (lifetime guarantee against defects in materials and workmanship). The combination of UPF 50+, ActiveFresh™ odor control, and performance construction makes the Eclipse a long-term investment for sun-exposed outdoor use.

General

Category
Women's Sun Shirt / UPF T-Shirt (Casual / Active)
Type
Lightweight short sleeve sun shirt with UPF 50+ protection and odor control
Use
Hiking, running, exploring in warm sunny conditions, water sports, casual sun protection, travel

Construction

Fabric
Polyester and spandex blend (bluesign® approved)
Sustainability
bluesign® approved fabric (environmental and safety standards)
Treatment
ActiveFresh™ odor control (binds to fibers, lasts the life of the garment)
Stretch
Movement-mirroring 4-way stretch (from spandex)

Features

Sun Protection
UPF 50+ (blocks ~98% UV radiation)
Odor Control
ActiveFresh™ (prevents odor-causing bacteria growth)
Neckline
Bonded (no traditional seam — clean, chafe-free finish)
Hem
Split side hem (natural drape, unrestricted movement at waist)
Construction
Chafe-free (flat seams, bonded neckline, tag-free)

Sizing

Fit
Relaxed fit (not tight, not loose — full mobility, all-day comfort)
Size Range
Women's sizes (specific range available on the OR product page — typically XS to XL)
Washing
Machine wash the Eclipse Sun T-Shirt in cold water with a mild technical fabric wash (like Nikwax Tech Wash or Grangers Performance Wash). Avoid harsh detergents, bleach, or fabric softeners, which can damage the UPF treatment, the ActiveFresh™ odor control, the polyester fibers, and the spandex stretch. Close any zippers (if applicable) before washing. Use a gentle cycle and rinse thoroughly.
Drying
Tumble dry the Eclipse on low heat or hang to air dry. The polyester/spandex blend dries relatively quickly. Avoid high heat, which can damage the UPF treatment, the ActiveFresh™ odor control, and the spandex stretch fibers. If the shirt is heavily soiled or has absorbed a lot of sweat, rinse thoroughly before drying to remove salt and body oils that can damage the fabric over time.
ActiveFresh™ Treatment Reapplication
The ActiveFresh™ odor control treatment is bonded to the fabric fibers and designed to last through the life of the garment with normal use and care. The treatment does not need to be reapplied like a surface spray. If you notice the odor control is reduced (e.g., the shirt smells bad after a single wear), the treatment may be reaching the end of its effective life. Avoid using fabric softeners, which can coat the ActiveFresh™ treatment and reduce its effectiveness.
UPF Treatment Care
The UPF 50+ sun protection is inherent to the fabric weave (the tight knit blocks UV radiation) — it's not a surface treatment that wears off. As long as the fabric maintains its weave integrity, the UPF protection will remain. Avoid harsh detergents, fabric softeners, or bleach that can degrade the fabric and reduce the UPF effectiveness. If the fabric becomes significantly stretched, worn, or thin, the UPF protection will decrease and the shirt should be replaced.
Storage
Store the Eclipse in a cool, dry place when not in use. Avoid leaving the shirt in direct sunlight for extended periods — UV exposure can fade the colors, degrade the UPF treatment, and reduce the ActiveFresh™ odor control over time. Don't store in a hot car — extreme heat can damage the spandex stretch fibers and the treatments. The shirt can be folded or hung on a wide hanger (avoid thin wire hangers that can stretch the shoulders).
Repair
Small tears or holes in the shirt can be repaired with a patch (like Tenacious Tape) or by an outdoor gear repair service. For bonded neckline failure or seam issues, contact Outdoor Research for warranty service — the Infinite Guarantee® covers defects in materials and workmanship for the life of the product.

Shipping Policy

Components:

All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 4-7 business days of purchase.

Bicycles:

Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

 Gear & Apparel:

Outdoor Gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 5-21 business days. Please reach out to us with the most up to date deliveries times as they vary per Manufacturer. 

Returns & Exchanges:

If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.

For full details, please see our Refund Policy before initiating a return.

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Prepared with intention.

Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.

Passion drives us

At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.


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