Zpacks Trail Cool T-Shirt
Shield yourself from summer sun and feel the breeze with the Trail Cool T-Shirt. This short-sleeve top is crafted from soft, stretchy, ultralight UPF 40+ fabric, providing breathable coverage and fast-drying comfort for long-distance hikers and trail runners who log big miles in the heat.
Our Trail Cool polyester fabric is designed to let the air through and pack down tiny. A spare t-shirt doesn't add much weight or bulk to your backpack, gym bag, or travel kit.
This t-shirt runs a little bit long and loose which is good for air flow and coverage. Size down if you are typically between sizes.
Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.
- Our ultralight 2.65 oz/sqyd Trail Cool Polyester fabric is designed to breathe and wick moisture, while providing durability on trail or on water. The fabric treads the line between being sheer enough to feel the breeze while having opacity for privacy.
- More breathable and faster drying relative to natural fibers.
- The material's stretch conforms to your body's movements.
- Top shoulder seamless design prevents backpack strap discomfort.
- A gentle dove tail shape on the rear provides extended coverage.
- The relaxed fit and stretchy material work well for both men and women's figures.
- UPF 40+
All Zpacks gear has a two year limited warranty against defects in materials or workmanship. Please see our return / warranty policy.
Imported.
| X-Small | Small | Medium | Large | X-Large | XX-Large | |
|---|---|---|---|---|---|---|
| Chest Girth: | 39 ⅜" (100 cm) |
41" (104 cm) |
42 ½" (108 cm) |
44" (112 cm) |
47 ¼" (120 cm) |
50 ⅜" (128 cm) |
| Length: | 28" (71 cm) |
28 ¾" (73 cm) |
29 ½" (75 cm) |
30 ⅜" (77 cm) |
31 ⅛" (79 cm) |
31 ⅞" (81 cm) |
| Waist: | 37" (94 cm) |
38 ⅝" (98 cm) |
40 ⅛" (102 cm) |
41 ¾" (106 cm) |
44 ⅞" (114 cm) |
48" (122 cm) |
| Bottom Hem Girth: | 39 ⅜" (100 cm) |
41" (104 cm) |
42 ½" (108 cm) |
44" (112 cm) |
47 ¼" (120 cm) |
50 ⅜" (128 cm) |
| Cuff Girth: | 12 ¼" (31 cm) | 12 ⅝" (32 cm) |
13" (33 cm) |
13 ⅜" (34 cm) |
14 ½" (37 cm) |
15 ⅜" (39 cm) |
Dial in your set up with add-ons commonly purchased with our shirts.
Shirt Add-Ons
Zpacks Octa Fleece Hoody - Pullover
From alpine ascents to campsite relaxation, the ultralight Octa® Fleece Hoody redefines what a fleece can do. Built with advanced Octa® fleece, it delivers exceptional durability, breathability, and a warmth-to-weight ratio that’s hard to beat.
Featuring a soft, fluffy interior for unmatched comfort, a half-zip for quick temperature control, and a fitted hood to lock out the cold the Octa® Fleece Hoody is designed for performance and versatility.
The spacious kangaroo pocket is perfectly positioned for use with a backpack belt, keeping essentials or trail snacks within easy reach.
Also available in a full-zip version.
Check out the rest of our Octa® Fleece Collection here.
Women's Octa Fleece Hoody - Pullover
From alpine ascents to nights around the campfire, the ultralight Women’s Octa® Fleece Hoody is designed to move with you and keep you looking great while doing it. Designed with a women's cut and offered in colors that flatter, this ultralight layer keeps you cute, confident, and comfortable wherever the trail leads.
Made with advanced Octa® fleece, it delivers exceptional durability, breathability, and a warmth-to-weight ratio that’s hard to beat. This pullover is designed for performance and versatility, featuring a soft, fluffy interior for unmatched comfort, a half-zip for quick temperature control, and a fitted hood to lock out the cold.
The spacious kangaroo pocket is perfectly positioned for access with a backpack belt on, keeping your hands warm and essentials within easy reach.
The Women’s Octa® Fleece Hoody is the go-to fleece you’ll reach for on every adventure.
Also available in a full-zip version. Check out the rest of our Octa® Fleece Collection here.
Zpacks Octa Fleece Hoody - Full Zip
From alpine ascents to campsite relaxation, the ultralight Octa® Fleece Hoody redefines what a fleece can do. Built with advanced Octa® fleece, it delivers exceptional durability, breathability, and a warmth-to-weight ratio that’s hard to beat.
Featuring a soft, fluffy interior for unmatched comfort, a full-length zipper for easy layering and precise temperature control, and a fitted hood to lock out the cold, the Octa® Fleece Hoody is designed for performance and versatility.
The spacious kangaroo style hand pockets are perfectly positioned for use with a backpack belt, keeping essentials or trail snacks within easy reach.
Also available in a half-zip pullover version.
Check out the rest of our Octa® Fleece Collection here.
Women's Octa Fleece Hoody - Full Zip
From summit pushes to starlit campfires the ultralight Women's Full Zip Octa Fleece Hoody is made for women who move with purpose. designed a flattering feminine fit and colors that inspire confidence this high-performance layer keeps you warm comfortable ready whatever adventure comes next.
Built with advanced Octa® fleece, it offers an unbeatable balance of durability, breathability, and warmth without the weight. The soft, airy interior feels luxurious against your skin, while the full-zip design gives you instant control over temperature and comfort. A fitted hood provides extra protection when the weather turns cool.
Thoughtful details like roomy hand pockets that stay accessible beneath a backpack belt ensure you can warm your hands or stash essentials with ease. Whether you’re climbing high or unwinding fireside, this fleece is made to move with you every step of the way.
Also available in a slightly lighter Pullover version. Check out the rest of our Octa® Fleece Collection.
Zpacks Ventum Wind Shell Jacket
Amazingly light but cuts the wind and holds the heat in with a layer underneath!
– Joe B., ★★★★★
The right layer can make all the difference. That's why the Ventum Wind Shell is purpose-built for those moments when a base layer alone isn’t enough, but an insulated jacket would be overkill.
A whisper-light layer that blocks the bite of the wind while staying highly breathable on the move, the Ventum Wind Shell starts at just under 2 ounces and disappears into your pack until you need it.
Pairs well with an Octa Fleece Hoody to cut the wind and trap in warmth. Ounce for ounce the Ventum Wind Shell has the best warmth to weight ratio of anything we sell.
Whether you’re logging miles on a thru-hike or pushing big days in unpredictable weather, the Ventum Wind Shell keeps you focused on the journey, not your layers.
Zpacks Octa Fleece Hat
The Zpacks Octa® Fleece hat delivers impressive warmth without the bulk, ensuring you stay cozy whether you're tackling a windy trail or your morning commute.
Ultralight by design and featuring a double layer of fleece around the ears, this hat locks in heat where it matters most while remaining breathable and easy to pack. Warmth without compromise—no matter where the day takes you.
For a heavier weight 4 season option, check out our Brushtail Possum Beanie.
Check out the rest of our Octa® Fleece Collection here.
Fleece Hat
A few weeks earlier, I would have just lived with a cold head. But not now! For almost no weight and a tiny amount of space in my pack, I put up a strong defense against hypothermia. Another great product!
– Jon B., ★★★★★
Stay warm and cozy when the temperature begins to drop, whether you’re on the trail or on your way to work. Ultralight and crafted with a double layer of micro-fleece around the ears, this hat was created to keep you warm but not weigh you down.
For a heavier weight 4 season option, check out our Brushtail Possum Beanie.
Still not warm enough? Check out our insulated clothing line here.
Zpacks Octa Fleece Neck Gaiter
When the morning air has more bite than your trail mix, the Zpacks Octa® Neck Gaiter has your back (and your neck, face, and occasionally your hair). This ultralight wonder isn’t just a gaiter, it’s a shape-shifting sidekick ready to tackle whatever the trail throws at you.
Need warmth? Done. Sunburn defense? Check. Bad hair day camouflage? Absolutely. Think of it as a multi-tool for your head except way softer, lighter, and less likely to pinch your fingers.
Check out the rest of our Octa® Fleece Collection here.
Fingerless Brushtail Possum Gloves
Winter weather can be harsh, but when the digits drop yours don’t have to feel the chill. Made from a combination of New Zealand's brushtail possum fur, and New Zealand Merino lamb's wool, these Fingerless Brushtail Possum gloves provide plenty of warmth when you need it most.
These fingerless gloves allow you to easily use your smartphone, open snacks or water bottles, and make removing stakes on cool mornings a breeze.
These gloves are a great companion to the Brushtail Possum Socks, and can be used as a liner under our Vertice Rain Mitts
*Gloves are non-returnable if they have been removed from the packaging.
Conductive Brushtail Possum Gloves
Excellent! I have the worst circulation and have tried literally every glove and mitten on the market. My hands and fingertips freeze within a few minutes of being in the cold wether it's mild or below zero. These gloves keep my fingertips warm! I do not have to wear anything else.
– Dave H., ★★★★★
Winter weather can be harsh, but when the digits drop yours don’t have to feel the chill. Made from a combination of New Zealand's brushtail possum fur, and New Zealand Merino lamb's wool, these Brushtail Possum gloves provide plenty of warmth when you need it most.
Featuring conductive ends on both the index finger and thumb, these gloves will allow you to use your smartphone and other touch screen devices without having to remove them.
These gloves are a great companion to the Brushtail Possum Socks, and can be used as a liner under our Vertice Rain Mitts
*Gloves are non-returnable if they have been removed from the packaging.
Zpacks Octa Fleece Mittens
Slip into our Octa® Fleece Mittens, your ultralight, trail-ready hand warmers that weigh next to nothing. Crafted from advanced Octa® fleece, these mitts boast a plush, brushed interior for cozy warmth and a durable mesh exterior that resists abrasion without collecting trail crud. These loose-fitting mittens work great solo or when layered over liners or under our Vertice Rain Mitts. Elastic wrists seal in the warmth, making them great for all-season adventures.
Check out the rest of our Octa® Fleece Collection here.
Brushtail Possum Mittens
Winter weather can be harsh, but when the digits drop yours don’t have to feel the chill. Made from a combination of New Zealand's brushtail possum fur, and New Zealand Merino lamb's wool, these Brushtail Possum mittens provide plenty of warmth when you need it most.
The mittens help keep your hands warm and cozy on those cold fall and winter nights.
These mittens are a great companion to the Brushtail Possum Socks, and can be used as a liner under our Vertice Rain Mitts
*Mittens are non-returnable if they have been removed from the packaging.
