The kantiri baskets of the Matsigenka are crafted from tamshi, a group of climbing plants known for their sturdy aerial roots. While tamshi is used widely across the Amazon, it holds a place of particular importance for Matsigenka women, who rely on its strength as an integral part of their basket-making tradition.

To create a kantiri, the process begins with harvesting tamshi vines from the forest. Next, the outer bark is meticulously peeled away with a knife to reveal the inner fibers, which are then brushed and prepped for weaving. Depending on its intended use, the basket is crafted into a round or semi-oval shape.

To enhance the basket's aesthetic, sanipanga leaves are introduced during weaving to dye and accentuate the fibers with a rich purple hue. While tamshi is a primary material, other forest resources are equally vital, such asthe tender hungurahui and huicungo palm leaves that are woven into flat tsiveta baskets, while sturdy caña brava is used for tsivogo katsantsanakiri, a square basket which is secured with thread to maintain its geometric form.

In contrast, the tsivogo kanuronakiri requires specialized fibers and techniques to achieve its distinct circular form. Also crafted from cane, these round baskets are woven using a specific method and, much like their square counterparts, are reinforced with thread to secure the fibers and ensure long-lasting durability.

Both square and round baskets serve a vital everyday purpose, providing a durable space to store personal belongings. Their natural fiber construction is functional and weather-resistant while protecting contents from humidity and rain. Ultimately, this weaving tradition allows Matsigenka women to blend utility with artistry, turning a daily necessity into an expression of their ancestral fingerprint.