Light 5-Pocket Pants


¥ 17,050 Tax included


Light Hiking Pants

The lightest pants in the Yamatomichi 5-Pocket 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.

Stronger fabric

The 2023 model has been updated with approximately twice the tear strength making it more tear-safe in hard conditions such as rocky terrain. The increased tear strength created a more firm texture to the fabric that keeps off your skin even when sweating.

*For more detailed information, please refer to “Material”.


Purple Haze
Blue Haze
Dark Indigo


Made in Akita, Japan

Pertex Equilibrium (78% Nylon, 22% Polyester) 62g/m²
YKK #3 Coil Zipper
149g (Size S)
151g (Size S-Tall)
153g (Size M)
155g (Size M-Tall)
161g (Size L)
163g (Size L-Tall)
169g (Size XL)
171g (Size XL-Tall)
MEN | S / S-Tall / M / M-Tall / L / L-Tall / XL / XL-Tall

Product Story

Even More Comfortable

Akira Natsume, Yamatomichi Founder

I was using our 5-Pocket Shorts during the summer and our 5-Pocket Pants when it got colder. That is, unless there was a particular reason to wear long pants. I never really considered wearing the long 5-Pocket Pants during summer. Surely, shorts are best on a hot summer day, right?

Makoto Fujiyama, wearing the 2021 version Slate Blue color.

That said, some of our customers preferred to wear their 5-Pocket Shorts even in the summer. I also noticed that some of them were wearing tights under our 5-Pocket Pants.

With the renewal of the fabric in 2023, the fabric strength, which had been a weak point, has been improved, making it possible to wear them with greater peace of mind.

The Light 5-Pocket Pants does a little bit of everything. It can be worn on a hot summer day. The flexible fabric makes it great for Yoga and since it is so light it can be an extra set of clothes for when traveling or even pajamas. (Revised 2023)

Read More

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 pocket
Large enough for comfortable keeping your hands in your pockets while hiking.

2nd pocket
The 2nd pocket is perfect for your smartphone. The perfectly-allocated pocket just behind the hipbone secures a smooth leg lift, preventing your phone from bouncing around, and keeps your phone safe and intact when sitting.

3rd pocket
The 3rd pocket is positioned high for wallets, etc. The long zipper tab allows for easy opening/closure of the pocket.

Key Loop
You can attach keys or a small carabiner to the long key loop. It’s also handy when you hang the pants to dry.

4th pocket
The lower part of the pocket liner is made of polyester mesh for drainage should the pants get wet.

5th pocket
The 5th pocket is made to fit the size of the normal hiking map. It is also perfect for a large-screen smartphone, compact digital camera, and even a water bottle.

Ultra Light. Ultra Flexible.

By using the Pertex Equilibrium fabric, we managed to create a pair of pants weighing only half of our regular 5-Pocket Pants. The Equilibrium is also slightly elastic allowing for great flexibility when hiking.

The twist-processing of the fibers and optimum weaving design create a slight two-way stretch even without the polyurethane material, which is elastic but easy to deteriorate with age.

The Pertex Equilibrium comprises 20 denier threads on the surface and 40 denier weft threads on the backside for more flexibility and lightness; a combination of the fibers with different deniers creates a unique irregular texture to keep your skin dry.

Flexible, stress-free, and comfortable.

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.

The chart below shows the moisture content in the fabric after 15 minutes of spin-dry. It compares our Light 5-Pocket Pants/Shorts with the base layers of major manufacturers, as well as a standard cotton shirt.

The lower the moisture content, the faster it dries. The Light 5-Pocket Pants/Short show that it is only 1.7% of water content after 15 minutes of spin-dry, which means it is almost completely dry.

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.

5-Pocket Lineup


More Durable Pertex Equilibrium

The special double-weave structure of Pertex Equilibrium has a slightly stretchy (two-directional) feel due to the combination of yarns of different thicknesses, and the unevenness on the reverse side of the fabric, which decreases skin contact and prevents the fabric from sticking to you.

until the 2022 model year was specialized to be extremely lightweight, the fabric was thin, and while it was cool and comfortable in warm weather, it was prone to tearing when rubbing against rocks and other surfaces.

In 2023, We doubled the tear strength by using a wider thread for the rip-stop which increased the weight by 10% but gave the fabric a more firm texture, making it stick less to the skin. This stiffer material to our surprise helped lower heat buildup within the garment even though the fabric was 40% less breathable by value.

In addition, the previous Pertex Equilibrium had a weakness in that it was prone to snags, but we have increase the strength on the backside making it less prone to snag and reduced the likelihood of tearing.

Tear strength measured by JIS L 1096 D (In-house test) Tensile strength measured by JIS L 1096 A (In-house test)

Strength values are averages of vertical and horizontal

Pertex Equilibrium (78% Nylon, 22% Polyester) 62g/m²
20d/20f x 20d/20f, Double cloth

Tear strength measured by JIS L 1096 D (In-house test)
Vertical: 1.9kg, Horizontal: 2.4kg

Tensile strength measured by JIS L 1096 A (In-house test)
Vertical: 37kg Horizontal: 44kg

Breathability measured by JIS 1096 A (In-house test)


  • Hide 178cm-75kg
    Size M-Tall (Blue Haze)

    • Hide 178cm-75kg
      Size M-Tall (Blue Haze)

      • Ichiro 170cm-56kg
        Size S (Olive)

      • Ichiro 170cm-56kg
        Size M (Purple Haze)

      • Ippei 172cm-62kg
        Size M (Coral)

      • Ippei 172cm-62kg
        Size L (Water)

      • Hide 178cm-75kg
        Size M-Tall (Blue Haze)

      • Hide 178cm-75kg
        Size L (Coral)

      • Pony 173cm-76kg
        Size L (Blue Haze)

      • Pony 173cm-76kg
        Size XL (Olive)

      • Tsuka 183cm-65kg
        Size L-Tall (Dark Indigo)

      • Tsuka 183cm-65kg
        Size XL (Purple Haze)

        • Ichiro 170cm-56kg
          Size S (Olive)

        • Ichiro 170cm-56kg
          Size M (Purple Haze)

        • Ippei 172cm-62kg
          Size M (Coral)

        • Ippei 172cm-62kg
          Size L (Water)

        • Hide 178cm-75kg
          Size M-Tall (Blue Haze)

        • Hide 178cm-75kg
          Size L (Coral)

        • Pony 173cm-76kg
          Size L (Blue Haze)

        • Pony 173cm-76kg
          Size XL (Olive)

        • Tsuka 183cm-65kg
          Size L-Tall (Dark Indigo)

        • Tsuka 183cm-65kg
          Size XL (Purple Haze)

          推奨サイズ / Recommended Size

          Size S ST M MT L LT XL XLT
          160~167 168~172 165~172 173~178 170~178 179~184 176~184 185~190
          52~61 52~61 59~69 59~69 67~78 67~78 76~85 76~85
          70~80 70~80 74~84 74~84 82~92 82~92 90~94 90~94

          製品サイズ / Product Size

          *Waist is measured when the rubber is not stretched.
          **The hip is the width measured at the largest part of the waist when placed flat.

          Size S ST M MT L LT XL XLT
          パンツ丈 / Pants Length 96 99 98.5 101.5 102 105 104.5 107.5
          股下 / Inseam 73.5 76.5 75.5 78.5 78.5 81.5 80.5 83.5
          ウエスト / Waist 65 65 69 69 73 73 78 78
          ヒップ / Hip 55.5 55.5 57 57 59.5 59.5 62 62
          裾巾 / Hemline 17.5 17.5 18 18 19 19 20 20


          Relatively Weak

          The Pertex Equilibrium, the fabric used in the Light 5-Pocket Shorts/Pants, is very thin and lightweight.

          The rip-stop construction provides some strength, but sharp objects such as rocks and branches can scratch and possibly tear the fabric. Please be careful when you walk through rocky ridges or sit down to rest on a rock.

          Please click REPAIR for repair.

          Care Instruction

          • 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.


          • We only accept payment by credit card. We currently do not accept payment via bank transfer from overseas accounts.
          • We accept the following Credit Cards: Visa, Master, American Express, and JCB.
          • To download your receipt, please click the link included in the Dispatch Notice, which we will send by email as soon as the items are dispatched.


          • Order Confirmation will be sent after the order.
          • The items will be dispatched within 3 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 by DHL for overseas customers (excluding China, Hong Kong, Taiwan, Korea and Russia). For customers in China, Hong Kong, Taiwan, Korea and Russia, we will ship by EMS only.
          • Shipping costs vary depending on your country and region.

          Size Exchange

          • Overseas customers who need to change the size of their order, should note that the time needed for shipping will vary greatly depending on your country of residence.
          • We only accept exchanges when the item is unused (except for fitting).
          • If you wish to exchange the size of the item, please contact us within seven days of receiving your order.
          • Exchanges can only be made for the same color in a different size.
          • If the size you wish is out of stock, we will suggest a different color.
          • If the product is out of stock, we may simply have to ship the item back to you.
          • All shipping costs to be carried by the customer.
          • We will only send the exchanged item to you, upon receipt of return shipping cost via PayPal.
          • Please be aware that some countries charge customs duties depending on the price of the item.
          • We are unable to answer any questions on local customs. Please contact your local customs bureau.


          We accept repairs for all of our Yamatomichi products. For inquiries on repair services including patching the holes, repairing with extra components, or fixing the items damaged over time, please feel free to contact us from the “Repair” section of the SUPPORT page.