Kasperi x Sandmann Fold Top – Quartermaster – Limited edition

Just six of these packs are launching at Heritage Post Trade Show on the 25th of October 2026. If we get lot's of demand, we'll make a limited edition batch! Sign up to the waiting list to let us know! 

When we met Heiko, Fred, and Jose from Sandmann Craft in the last edition of the Heritage Post Trade Show, the conversation quickly turned into something more — a shared passion for quality, craft, and timeless gear. From those conversations, the Kasperi x Sandmann Fold Top – Quartermaster was born. Made to match their renowned and classic Quartermaster shoe, featuring sturdy Spanish cowhide suede, it's one of the most striking Fold Tops we've made to date. Watch the video of how it was made here! The shoes are available through Sandmann Craft!

The Fold Top backpack is a choice for life, whether you're hitting the trails, traveling, or going about your daily life. Its ergonomic design ensures comfort during extended use, while its distinguishably good looks make it a great match for both casual and formal settings.

The unique design of the saddle leather back frame distributes weight evenly for comfortable carrying of heavier loads. The wide leather straps conform to the contours of your shoulders for an exceptionally comfortable fit. 

But don't just take our word for it - read the reviews below on Carryology as well. If you still need more information, don't hesitate to ask through the form below or by email.

Why this pack?

Design

• Made for 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 over time as the leather patinates.
• Crafted in Finland with a passion for quality at our own Workshop in Hämeenlinna.
• Engineered for repairability with structures that make repairs possible.
• Built to last with strong materials to leave something for the next generations.

Features

• Six sturdy attachment points for attaching hiking equipment, fishing rods or camera tripods.
• Front pocket to keep your everyday carry conveniently at hand.
• Detachable laptop sleeve for up to 17” 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 its 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: Supple yet sturdy Spanish chrome-tanned bovine suede leather from Sandmann Craft.
• 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 steel – Italy

Inside dimensions

Main compartment: Width 30cm, Height 45–60cm, Depth 16cm

Front Pocket: Width 20cm, Height 14cm, Depth 4cm

Felt Sleeve: Width 29cm, Height 43cm, Depth 4cm

Volume

27 liters at maximum capacity

Use & Leather Care

How long is the break-in period of the leather backpack?

We believe that leather is the best material for backpacks because it conforms to our bodies over time and can last for decades while remaining in good condition.

Like all high-quality leather goods, Kasperi backpacks also 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 from the pressure points to help it form faster.

Closing and opening the G-buckles is also stiff at first but as the leather loops softens and form over time it will become fluid.

With proper care and use, these packs develop a unique patina and become more personal by the day.

How should I care for my leather backpack?

You can start using your backpack straight out of the box. Leather works well even in bad weather conditions, and getting wet is fine as long as it is properly cared for. Of course the harder use, the faster patina, but that only ads character to the pack. 

Treat with wax every 4-6 months or when the leather feels like it's drying, treat lightly with wax. Wipe the leather to clean it. With a cloth spread a thin layer of wax on the leather. Allow the wax to permeate overnight and then polish the remainders off with a cotton or wool cloth. The scent of tar will fade away in a couple of days, if a lot of wax is applied, this will take longer. 

We recommend using natural products like bees wax based products or natural oils. Synthetic leather protection can block the pores of the leather. This will reduce the leather's ability to absorb wax and oils - ultimately reducing the lifespan of the backpack.

What about repairs or service?

We believe in the “right to repair”. Every aspect from structures to material thicknesses considered for repairability. Because our bags are designed to last for decades, they will require servicing at some point.

The hardest-wearing parts (i.e. shoulder straps) are made from 3mm leather for longevity and the whole structure is designed with serviceability in mind.

We offer a repair service for our bags and backpacks.