Small Fold Top – British Millerain Field Twill in Khaki

Kasperi x British Millerain – Combining British heritage in hardwearing cotton fabrics and Finnish utilitarian design.

Made in our workshop in Finland from British Millerain's Field Twill, a durable 18 oz dry-waxed cotton fabric.

The Field Twill is dense, structured, and shower-proof, with a dry, practical handfeel. It gives the Small Fold Top a lighter body than full leather, while keeping the same long-use character, repairable construction, and comfortable leather frame that define our backpacks.

The Small Fold Top is a choice for everyday life, travel, and spontaneous adventures. Its outstanding carrying ergonomics, versatile rigging options, and expandable capacity keep you ready for daily use and weekends outside.

It is a compact pack that feels at home in many settings: in any weather outdoors, at work, while travelling, or cycling through your local trails. Built from materials that take use and develop character over time, this backpack is made to stand the test of time, by your side for decades of daily use and travel.

The saddle leather frame distributes weight evenly for comfortable carrying. The wide leather straps conform to the contours of your shoulders over time for an exceptionally comfortable fit.

Why this pack?

Design

• Made for everyday use with great load distribution and versatile rigging options.
• Outstanding comfort as the leather conforms to your body over time.
• Timeless design that builds character as the leather and cotton patinates and softens over time.
• Crafted in Finland with a passion for quality at our own Workshop in Hämeenlinna.
• Engineered for repairability with structures that make servicing possible.
• Built to last with strong materials to leave something for the next generations.

Features

• Two side and two front attachment points for attaching hiking equipment, fishing rods, camera tripods, or other gear with accessory utility straps.
• Shower-proof and dry waxed Field Twill cotton body for everyday weather resistance.
• Detachable laptop sleeve for up to 16” laptops or documents.
• Adjustable capacity with the extension strap that’s stored inside.
• Built-in carrying handle for easy travel in buses, trains and planes.
• D-ring key loop for never losing your keys.
• Stay safe and visible by attaching a rear bicycle light to the lowest utility attachment point.

Details

Materials and origins

• Cutting and sowing: Handcrafted in Finland at the Kasperi Workshop
• Frame and back: Sturdy SOHRE tannery’s vegetable-tanned bovine saddle leather
• Folding part: Durable 18oz Field Twill 100% cotton by British Millerain
• Laptop sleeve: Recycled PET felt – made in Finland
• G-buckles: Marine-grade stainless steel – laser cut in Finland
• Roller buckles: Chromed steel – Sweden
• Yarn: Waxed polyester yarn – Italy
• Rivets: Copper-plated brass and steel – Italy

Inside dimensions

Main compartment: Width 30cm, Height 40–45cm, Depth 14cm

Felt Sleeve: Width 27cm, Height 37cm, Depth 3cm

Volume

18 liters at maximum capacity

Sets

Configure your rucksack

One bag, multiple uses. Choose one of the sets below and configure your pack best to suit your lifestyle. All of the sets below include our Leather Wax.

Minimalist

Your daily needs are covered with the supplied two short utility straps. For longer items attach them on the same side. Or one on each side for smaller items like the Kuksa or the Puukko. Light and simple.

Cargo Hauler

Featuring four short utility straps, the Cargo Hauler turns your pack’s versatility up a notch. Whether you're carrying a camera tripod, fishing rod, or hiking gear, the Cargo Hauler extends your possibilities.

Wild Swimmer

Wild swimming and sauna bathing are unbeatable ways to add something elemental to everyday life. The human body reacts viscerally when exposed to the elements, and cold water has been used for relaxation and recovery for centuries.

The heart of the set is the Lapuan Kankurit Meri linen terry towel. This is no ordinary towel. It is absorbent and coarse, scrubbing the skin and boosting the feeling of circulation after cold water dips. Made from ecological 70% linen and 30% cotton, this Finnish-made towel is long-lasting and only gets better and more comfortable with use. With the supplied utility straps, you can hang the towel on the outside of your pack to air out after your dip.

Traveller

When you need to travel light but still carry your essentials, the Traveller Set is the ultimate combo. Pair your backpack with the A4 Field Satchel for a seamless travel experience.

The A4 Field Satchel keeps your work or creative tools, like your laptop, notebook, and chargers, within reach, while your backpack is fully reserved for personal gear. Whether you’re heading out by land, rail, or air, this set is built for agility. We’ve traveled this way many times, and its convenience has earned it a permanent place in our setup.

Field Barista

This is our go-to set for most of our day hikes, from the Nordic woods to the Finnish archipelago. The Field Barista set includes two short utility straps, the Kasperi Puukko, Coffee Pot + Coffee, and the Kuksa. The simple brewing process creates a full-bodied and creamy coffee. Find the best spot, make a fire and enjoy campfire coffee.

Background

A 150 years in materials development. 7 years of product testing.

In 2019, we made the first prototype with this material: a Fold Top combining leather with 18 oz dry-waxed Field Twill cotton from British Millerain specially made for bags and luggage.

British Millerain is based in Greater Manchester. A city that was once known as Cottonopolis, the undisputed global center of cotton manufacturing. With ships sailing in and out of the port of Manchester bringing in raw materials and shipping out a third of the global supply of finished cotton fabrics, the city was intimately connected to maritime needs through trade. The British Millerain twills were developed with the traditional sailcloths in mind, where waxes were used to make natural fabrics more resistant to weather.

After seven years of our own testing, we decided to take it into production as we deemed it tough enough to stand next to leather. The 18 oz Field Twill is a cotton fabric similar to canvas, with a dense and tough diagonal weave. It gives the backpack a lighter body, while keeping the utilitarian character Kasperi is known for.

Cut and sewn at our workshop in Hämeenlinna, Finland. Familiar, but not quite like anything we have made before.

Use & Care

How should I care for the fabric parts?

The folding part is made from dry-waxed cotton, which is shower-proof and made for everyday weather. For all practical needs and field use it can handle changing conditions, rain, and daily use. The fabric will soften, mark and develop character over time. This is part of how cotton twill ages.

For maintenance, brush off dust and sand, and for stains wipe with a damp cloth. The body fabric has a dry wax finish that makes it resist water. Dry wax finishes can be reproofed with special reproofing agents. If you decide to use other waxes, it can result in changing the colour and feel of the fabric, which should be taken into account.

How should I care for the leather parts?

The leather works well in changing everyday weather, and getting wet is fine as long as it is properly cared for. Let the bag dry naturally at room temperature. Do not dry it with direct heat.

Treat the leather lightly with wax every 4–6 months, or when the leather feels dry. Wipe the leather clean, spread a thin layer of wax with a cloth, let it absorb overnight and polish off the remainder with a cotton or wool cloth.

We recommend natural products such as beeswax-based leather care or natural oils. Synthetic leather protection can block the pores of the leather. This can reduce the leather’s ability to absorb wax and oils, ultimately reducing the lifespan of the backpack.

How long is the break-in period?

The Field Twill is a structured fabric similar to tough cotton canvas. It will maintain much of that character, slightly softening over time. The leather back frame and shoulder straps still have a break-in period.

It will take a couple of weeks of active use for the shoulder straps to start forming to your body. If you experience any pressure points, squeeze the straps lightly with your hands at the pressure points to help them form faster.

Closing and opening the G-buckles is also stiff at first. As the leather loops soften and form over time, it will become fluid.

With proper care and use, the backpack develops its own character. The leather patinates, and the dry-waxed cotton softens and records use.

What about repairs or service?

We believe in the right to repair. Every aspect, from structure to material thickness, is considered with repairability in mind.

The hardest-wearing parts, such as the shoulder straps and back frame, are made from strong vegetable-tanned leather. The whole structure is designed so that servicing is possible.

Because our bags are designed to last for decades, they may require servicing at some point. We offer a repair service for our bags and backpacks.