143g (Size S-Tall)
147g (Size M)
149g (Size M-Tall)
155g (Size L)
157g (Size L-Tall)
Introduction
Ultralight comfort for hot conditions
The lightest and thinnest pants in the Yamatomichi lineup.
The Light 5-Pocket Pants with an elastic Pertex Equilibrium fabric is comfortable even when hiking on hot summer days. As with all our 5-Pocket Pants, the five pockets are uniquely positioned to hold your smartphone and maps, while ensuring maximum flexible leg movement.
If you’re looking for pants that feel barely there and move effortlessly with you, the Light 5-Pocket Pants are the answer.
Updates for the 2026 model
・The waist belt webbing has been redesigned to resist twisting.
・The pocket bag construction has been refined.
*For more details, please see here.
Product story
Feels like part of your body
I used to live in the 5-Pocket Shorts through the warmer months, then switch to the 5-Pocket Pants when it cooled down. In other words, unless there was a specific reason, I never wore long pants in summer.
Because let’s be honest—nothing beats shorts in the heat, right?
Pei Pei, wearing the 2022 version Marron color.
But we heard from plenty of Yamatomichi users who prefer long pants even in summer. The goal was to create a pair that could offer the same kind of comfort as shorts in hot weather—light, airy, and easy to forget you’re even wearing. That idea became the Light 5-Pocket Pants, which weigh about half as much as the 5-Pocket Pants.
Since the fabric update in 2023, durability has also improved, addressing what had been the fabric’s main weak point and making them a more reliable choice for both the mountains and everyday wear.
To me, the feel of the Light 5-Pocket Pants is close to wearing steteko—exceptionally light, relaxed, and unrestrictive. You can even do yoga in them, and in the height of summer they stay comfortable without overheating. In colder seasons, pairing them with the Light Alpha Tights creates a layering system that is warm, lightweight, and easy to move in.
They’re also great for travel: light enough to pack easily, and versatile enough to use as sleepwear or as an extra pair to change into.
Form and function
Pockets for Smartphone and Maps
Yamatomichi 5-Pocket design can neatly store your map, snack, wallet, and other items you need during hiking, without interfering with your leg movement.
Especially, our smartphone pocket at the side is so well-positioned that it fits your phone while keeping it securely in place without bouncing around when running. The map pocket is large enough to store the water bottle.
1st & 4th pockets
Side pockets designed for easy hand access. The bottom of the pockets uses polyester mesh so water can escape.
2nd pocket
Sized to fit most standard smartphones. Positioned behind the hip bone so it doesn’t interfere with leg movement, stays stable while running, and sits in just the right spot so you won’t end up sitting on your phone.
3rd pocket
Placed slightly higher with a long zipper pull for easy opening and closing—ideal for carrying a wallet and other small valuables.
Key Loop
A longer loop for attaching a mini carabiner or hanging the pants on a hook.
5th pocket
Sized to fit a standard hiking map perfectly, while also accommodating a large-screen smartphone, a compact digital camera, or even a plastic bottle.
Ultralight and easy to move in
Made with Pertex Equilibrium, the Light 5-Pocket Pants weigh in at about half the weight of the 5-Pocket Pants.
Instead of relying on polyurethane-based stretch, which is commonly used in stretch fabrics but prone to aging over time, the fabric achieves a modest two-way stretch through false-twist yarn processing and a carefully balanced weave. The result is a light, durable fabric that moves easily with your body and stays out of the way during high steps and other dynamic movement.
Super fast-drying
As the fabric is super thin it dries in no time. The elastic waistband uses mesh material for quicker drying and better comfort when it gets wet from sweat or rain.
15 minutes of spin-drying
We compared the moisture retention of the Light 5-Pocket Pants with synthetic base layers and lightweight cotton shirts after 15 minutes of spin-drying. Lower values indicate faster drying, and at just 1.7%, the Light 5-Pocket Pants are nearly dry only 15 minutes after being taken out of the washing machine.
5-Pocket Lineup
Yamatomichi offers three types of bottoms for the three seasons of spring, summer, and autumn: the Light 5-Pocket Pants/Shorts, which are super light and offer exceptional breathability; the standard 5-Pocket Pants/Shorts, the origin of the series; and the DW 5-Pocket Pants/Shorts, which are somewhat in the middle between the two.
Please visit the below page for details and comparisons of all our 5-Pocket Pants and Shorts.
Each has its own advantages and disadvantages depending on the situation, season, and application, but all of the designs are similar. Please visit the following link for details.
Material
Pertex Equilibrium
Pertex Equilibrium uses a double-weave construction that keeps the fabric from sticking to your skin, helping it feel dry and comfortable even in hot conditions.
It also has a slight natural stretch, so it moves easily with your body while staying light and durable. The nylon–polyester blend gives the fabric its subtle heathered appearance.
44kg
Size guide
Size chart
| Size | S | ST | M | MT | L | LT |
|---|---|---|---|---|---|---|
| Height (cm) | 150~158 | 159~164 | 156~164 | 165~169 | 162~169 | 170~176 |
| Weight (kg) | 42~49 | 42~49 | 47~56 | 47~56 | 54~62 | 54~62 |
| Waist（cm） | 60~66 | 60~66 | 64~72 | 64~72 | 68~76 | 68~76 |
Product dimensions
※1: The listed waist size is measured without stretching the elastic waistband
※2: The listed hip size is measured at the widest point when laid flat.
Unit: cm
| Size | S | ST | M | MT | L | LT |
|---|---|---|---|---|---|---|
| Pants length | 91.5 | 94.5 | 95.5 | 98.5 | 99 | 102 |
| Inseam | 70 | 73 | 73 | 76 | 76 | 79 |
| Waist | 62 | 62 | 67 | 67 | 71 | 71 |
| Hip | 53.5 | 53.5 | 56 | 56 | 58.5 | 58.5 |
| Hemline | 17 | 17 | 17.5 | 17.5 | 18.5 | 18.5 |
※Due to fabric stretch and sewing discrepancies, actual measurements may differ slightly from the stated dimensions.
※Sizes may change over time as the fabric can contract with wear and washing.
Fitting
Shiori 167cm 55kg
Size L (Dark Gray)
Shiori 167cm 55kg
Size L (Dark Gray)
Kaori 152cm 43kg
Size S (Dark Indigo)
Kaori 152cm 43kg
Size M (Cinnamon)
Saki 156cm 48kg
Size S (Purple Haze)
Saki 156cm 48kg
Size M (Woodbine)
Miho 159cm 51kg
Size S (Brown Sugar)
Miho 159cm 51kg
Size M (Woodbine)
Hitomi 164cm 50kg
Size S (Dark Indigo)
Hitomi 164cm 50kg
Size M (Cinnamon)
Shiori 167cm 55kg
Size M (Cinnamon)
Shiori 167cm 55kg
Size L (Dark Gray)
Miwa 172cm 60kg
Size M (Woodbine)
Miwa 172cm 60kg
Size L (Dark Gray)
Kaori 152cm 43kg
Size S (Dark Indigo)
Kaori 152cm 43kg
Size M (Cinnamon)
Saki 156cm 48kg
Size S (Purple Haze)
Saki 156cm 48kg
Size M (Woodbine)
Miho 159cm 51kg
Size S (Brown Sugar)
Miho 159cm 51kg
Size M (Woodbine)
Hitomi 164cm 50kg
Size S (Dark Indigo)
Hitomi 164cm 50kg
Size M (Cinnamon)
Shiori 167cm 55kg
Size M (Cinnamon)
Shiori 167cm 55kg
Size L (Dark Gray)
Miwa 172cm 60kg
Size M (Woodbine)
Miwa 172cm 60kg
Size L (Dark Gray)
Instructions
Durability
Because Pertex Equilibrium is such a thin and lightweight fabric, the Light 5-Pocket Pants use a ripstop construction to add strength. Even so, contact with sharp rocks, branches, or other abrasive surfaces can cause small holes or tears. Please take care when moving through rocky terrain or sitting on rough ground during breaks.
Care instructions
- Machine wash below 40°C.
- Use a laundry net or wash separately.
- Line dry in the shade.
- Tumble dry below 60°C.
- Do not bleach and do not use fabric softener.
- Iron on low without steam.
- Do not dry-clean.
- High temperatures may cause shrinkage.
- The fabric may develop snags due to the friction with your body hair.
Care page
Visit our Care page for detailed washing, drying, and general care instructions.
Payment
- We only accept payment by credit card for orders from overseas.
- Bank transfer is available only to customers with a Japanese bank account.
- We accept the following credit cards: Visa, Mastercard, American Express, and JCB.
- To download your receipt, please click the link included in the dispatch notice email, which will be sent once your order has been shipped.
Delivery
- Order Confirmation will be sent after the order.
- The items will be dispatched within 5 days after the payment is confirmed.
- The dispatch notice will be sent by email as soon as the items are dispatched.
- The delivery may be delayed by unforeseeable reasons such as natural disasters and other logistics issues. We appreciate your patience and understanding.
- We cannot ship multiple orders in one package due to how our delivery system is currently set up.
- We will ship to regions in North America, Oceania, and Europe via DHL. For regions in Asia, the Middle East, Central and South America, Africa, we use EMS (International Express Mail Service) for shipping. We currently cannot ship to Russia due to Japanese postal regulations.
- Shipping fees and delivery times vary depending on the shipping destination as well as the size and weight of the items. To find out how much shipping will cost, please add all of your desired items to your cart and enter your shipping information, the exact amount will be shown.
Size exchange
Choosing the right size online can be difficult. To make your purchase easier, Yamatomichi offers a size exchange program for eligible items. To request a size exchange, please use our size exchange form here. Please review the conditions below before submitting your request.
- We only accept exchanges when the item is unused (except for fitting).
- If you would like to exchange your item for a different size, please contact us within seven days of receiving your order.
- Exchanges are available only for the same color in a different size.
- If your preferred size is out of stock, we may suggest a different color instead.
- If the product is no longer available, we may need to return the original item to you.
- All shipping costs are the responsibility of the customer.
- We will send the exchanged item after receiving payment for the return shipping cost via PayPal.
- Please note that some countries may charge customs duties depending on the value of the item.
- We are unable to advise on local customs regulations. Please contact your local customs office directly.
Repair
At Yamatomichi, we’re happy to help extend the life of your gear. We offer repairs for all of our products — whether it’s a hole, broken parts, or wear and tear from years of use. If you’d like to request a repair, just head over to the Repairs section on our support page and get in touch. We’ll be happy to assist you.
For small holes or tears, you can also patch them up yourself using our repair patches.