I absolutely love this pack. Its super comfortable and super light!

– Charlene, ★★★★★

The Arc Haul Ultra is your trail-tested partner for epic thru-hikes and everyday escapes. Crafted from ultra-durable Ultra 100X fabric, this powerhouse of a pack balances comfort and strength with barely-there weight.

Designed with women in mind, it helps you carry with confidence. Our signature curved carbon fiber Arc Frame transfers weight to your hips and creates a breathable space between your back and the pack. No more sweaty discomfort during long climbs or hot days.

With a patented adjustable torso height, interchangeable shoulder straps, and a padded belt that hugs your shape, the Arc Haul Ultra isn’t just made to fit, it’s made to fit you. Add modular accessories to suit your adventure style and you’re ready to take on big miles with comfort, grace, and grit.

We bought two of these backpacks last year used them for 60+ miles without issues. They are way more comfortable and lighter than our previous backpacks. We loved them, looking forward for our next backpacking trip this summer.

– Liz, C★★★★★

The Arc Haul Ultra is your trail-tested partner for epic thru-hikes and everyday escapes. Crafted from ultra-durable Ultra 100X fabric, this powerhouse of a pack balances comfort and strength with barely-there weight.

Designed with women in mind, it helps you carry with confidence. Our signature curved carbon fiber Arc Frame transfers weight to your hips and creates a breathable space between your back and the pack. No more sweaty discomfort during long climbs or hot days.

With a patented adjustable torso height, interchangeable shoulder straps, and a padded belt that hugs your shape, the Arc Haul Ultra isn’t just made to fit, it’s made to fit you. Add modular accessories to suit your adventure style and you’re ready to take on big miles with comfort, grace, and grit.

This backpack is like finding prince charming! I never knew how bad i had it with other backpacks until i used this bad boy! Holy moly there is a difference!!! The back support, and how its off my shoulders blows my mind!!! Soooo worth it!

– Libby, ★★★★★

The Arc Haul Ultra is your trail-tested partner for epic thru-hikes and everyday escapes. Crafted from ultra-durable Ultra 100X fabric, this powerhouse of a pack balances comfort and strength with barely-there weight.

Designed with women in mind, it helps you carry with confidence. Our signature curved carbon fiber Arc Frame transfers weight to your hips and creates a breathable space between your back and the pack. No more sweaty discomfort during long climbs or hot days.

With a patented adjustable torso height, interchangeable shoulder straps, and a padded belt that hugs your shape, the Arc Haul Ultra isn’t just made to fit, it’s made to fit you. Add modular accessories to suit your adventure style and you’re ready to take on big miles with comfort, grace, and grit.

I bought the Woman's Arc Haul Ultra with various add-ons. It is the most comfortable pack I've tried. I love the possibilities to customize it with all the add-ons!

– Pia★★★★★

The Arc Haul Ultra is your trail-tested partner for epic thru-hikes and everyday escapes. Crafted from ultra-durable Ultra 100X fabric, this powerhouse of a pack balances comfort and strength with barely-there weight.

Designed with women in mind, it helps you carry with confidence. Our signature curved carbon fiber Arc Frame transfers weight to your hips and creates a breathable space between your back and the pack. No more sweaty discomfort during long climbs or hot days.

With a patented adjustable torso height, interchangeable shoulder straps, and a padded belt that hugs your shape, the Arc Haul Ultra isn’t just made to fit, it’s made to fit you. Add modular accessories to suit your adventure style and you’re ready to take on big miles with comfort, grace, and grit.

It is really the best backpack I have ever owned. Lightweight, waterproof (tested under strong rain), a lot of space inside and very well balanced all the weight goes in the hips so the shoulders are always relaxed. Love it 🥰

– Daniele B., ★★★★★

The Arc Zip Ultra was built from the ground up for adventurers who need quick access to their gear and all-day comfort on the trail. Whether you're pausing to grab a snack or snapping a summit photo, the convenient front zip panel gives you fast access to essentials, without unpacking everything.

Our signature curved carbon fiber Arc Frame transfers weight to your hips and creates a breathable space between your back and the pack. No more sweaty discomfort during long climbs or hot days.

With a patented adjustable torso height, interchangeable shoulder straps, and a padded belt that hugs your hips this ultralight pack is ready to move with you wherever the miles take you.

Developed over 3,000 miles on the Continental Divide Trail and tested in the Alps, the Women’s Mirage Merino Sun Hoody is designed to deliver ultralight sun protection in a flattering, form-fitting silhouette.

Made in collaboration with Evolved Supply Co, it combines breathable merino performance with soft, technical comfort—available in a fresh selection of colors inspired by the trail and tailored for women.

Thoughtful details like a quarter-zip, airflow-optimized hood, and thumb holes ensure comfort and coverage from sunup to sundown.

Also available in a men's version here. Check out the rest of our Merino Collection.

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.

Technical gear isn’t just for your pack; it belongs in your everyday kit too. Our Trail Cool Joggers are built with cutting-edge Japanese tech Toray PrimeFlex™ fabric, designed to keep up with thru-hikes, overnighters, trail runs, and city adventures alike.

They’re crazy durable, super breathable, and move with you thanks to an articulated cut and 4-way stretch that feels like a second skin. Whether you're grinding out big miles or grabbing post-trail tacos, these joggers bring next-level versatility with zero compromises.

Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.

Engineered for outdoor versatility, the ultralight Octa® Camp Pants are crafted with Octa® fleece that offers durability, breathability, and a superior warmth-to-weight ratio. They are excellent as sleep pants, while also doubling as a base layer under backpacking pants or shorts.

A soft, cozy interior ensures all-day comfort, while the tapered design and gusseted crotch provide a streamlined fit that layers easily under pants or hiking shorts. Deep front pockets keep your essentials close, whether you’re on the trail or lounging at camp.

*The length has been increased and is in effect across all sizes as of November 2025 thanks to feedback.

Check out the rest of our Octa® Fleece Collection here.

Zpacks Octa® Fleece Thermal Bottoms beat the warmth and weight of all other long underwear in their class. Designed to be worn under your hiking pants in frigid weather, under shorts in cool weather, or worn as an ultralight sleep layer, these leggings are unmatched when ounces count.

Octa® Fleece features a soft, fluffy interior that traps warmth and keeps you cozy, and an abrasion-resistant exterior that withstands wear and tear.

Check out the rest of our Octa® Fleece Collection here.

Excellent! I wear it as an external layer, fits perfectly, it keeps me dry. Ultralight and a nice colour.

– Lacramioara, ★★★★★

When the skies are overcast and the rain is pouring down, our ultralight Vertice Rain Jacket offers superior protection and breathability. Our Vertice material is optimized to be lightweight without compromising on durability, and it is among the lightest possible choices for waterproof hyper-breathable rain gear.

Also available in Men's Sizes.

Be sure to check out the rest of our Vertice Rain Gear.

They do what they’re supposed to do without adding hardly any weight. For any item so useful when needed this is the best option I’ve found. Thank you.

– Cristina R., ★★★★★

Stay dry during those grueling climbs in the rain with the Women’s Vertice Pants. Gone are the days of hot, humid, and unventilated rain gear. Our Vertice fabric is optimized to be lightweight without compromising on durability, or breathability, and it is among the lightest possible choices for waterproof hyper-breathable rain gear.

Also available in Men's Sizes.

Be sure to check out the rest of our Vertice Rain Gear.

The kilt packs down to nothing and very very light weight. Far better than carrying rain trousers at 5 times plus for weight. The kilt is very easy to use quickly and no need to take boots off. A great idea that keeps you dry with good quality materials and finish. Arrived quickly when ordered.

– Ian M., ★★★★★

The Vertice Kilt is a unique solution to staying cool in warm weather storms, and is a great option for ultralight waist to knee rain protection. It can also be worn as a stand alone item on laundry day. The Vertice Rain Kilt works great when combined with our Vertice Rain Jacket or Groundsheet Poncho.

Also available in a lighter weight Dyneema Composite Fabric DCF Rain Kilt version.

If you're not into a kilt but still into staying dry, check out the rest of our Rain Gear.

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.

The Zpacks Ultralight Camp Shoes are crafted with serious hikers and backpackers in mind. Made from durable Robic fabric and breathable lycra mesh, these shoes offer a lightweight yet protective layer that lets your feet breathe after a long day on the trail.

The thin yet resilient 4mm foam sole is designed to keep rocks, roots, and rugged terrain from disturbing your downtime, so you can enjoy those campfires and late night privy visits without the weight of traditional camp shoes or waterlogged trail runners.

Compact and collapsible, these camp shoes are lighter than sandals and as comfortable as slippers. They are as packable as they are practical, fitting snugly in even the smallest corners of your backpack. Whether you’re a dedicated thru-hiker or a weekend warrior, the days of big, clunky footwear dangling off your pack are over. Also great as a shower sandal!

Deluxe Camp Shoes with an enclosed heel are also available.

These shoes are meant to be worn for short distances around camp. Not intended for hiking.

The Zpacks Deluxe Camp Shoes are built for hikers and backpackers who want a little extra comfort and security once the miles are done for the day. These closed-heel camp shoes give your feet a lightweight, protective layer while still allowing them to breathe after long days on trail.

A 5mm foam sole helps cushion your feet from rocks, roots, and uneven ground around camp, while the optional insole add-on doubles the protection if you want a more slipper-like feel. The closed heel offers a secure fit and keeps crud out, making them ideal for moving around camp, late-night privy trips, hostel stays, and post-hike recovery. 

Compact, collapsible, and easy to pack, the Deluxe Camp Shoes can be worn with or without socks and tucked into almost any backpack pocket when not in use. They offer a lightweight alternative to clunky sandals or waterlogged trail runners, so you can give your feet a break without adding unnecessary bulk to your pack.

An Ultralight Strap-Back Camp Shoe is also available, good for draining water and showering.

These shoes are meant to be worn for short distances around camp. NOT intended for hiking.

They are really comfortable, true to size, and really help with keeping your feet cool on a hike.

– Debbie L., ★★★★★

Prevent blisters and let your feet breathe with our Zpacks Trail Cool Socks. Enjoy the same performance elite athletes have come to expect in other sports with an ultralight hiking sock that's comfortable, breathable, and dries in minutes.

Check out the rest of our Trail Cool collection to discover our full lineup of breathable UL clothing.

If you squat to pee then the antimicrobial Zpacks Kula Cloth was designed for you. Our “Appalachian Sunrise” cloth is a super absorbent pee cloth made from advanced silver-infused, antimicrobial fabric that is both easy to clean and eco-friendly.

Simply attach the cloth to your pack with the built in snaps and you’ve got yourself an easy to access, zero waste, option for backcountry tinkle time.