At its core, it all revolves around connecting understanding and love. Leo Sima, the founder, grew up in a family that has built its reputation on high-quality pet products—from hand-stitched pet beds to custom-made leashes, the craftsmanship passed down through generations was once a beloved choice among pet-owning families in the neighborhood. After graduating with a degree in Animal Science, Leo Sima returned to the family workshop to take charge of developing a new generation of pet travel backpacks. However, this led to a disagreement with his father regarding design philosophy.
His father insisted on retaining the traditional "wide shoulder straps + breathable cotton" design, believing it would reduce the pressure on pets and soften the jolts during travel. In contrast, Leo Sima thought modern pet owners needed more multi-functional options that were lightweight, foldable, and equipped with storage compartments. He even proposed innovative ideas like adding detachable, scratch-resistant liners and USB ports. Despite constant disputes, his father still took their family Corgi for walks in the suburbs every sunny weekend using a decade-old canvas pet bag. Even though the bag had frayed edges, he insisted on mending it by hand instead of replacing it with a new one.
Their differences came to the forefront after a family gathering. Leo Sima watched his father squat in the yard, repeatedly scrubbing the zipper gaps inside the old backpack with an old toothbrush dipped in soapy water. He couldn’t help but complain that this old-fashioned design was too cumbersome to clean, completely falling behind the current trend of "one-click detachable cleaning." His father simply pointed to an unremarkable piece of fabric inside the backpack and said, "Look at this cotton pad—it’s cut according to the curve of a pet’s spine. Stiff materials would make them uncomfortable. These gaps are a hassle, but if you clean them thoroughly, they won’t trap dirt and grime, so pets can lie inside with peace of mind." Staring at the water-wrinkled lines on his father’s fingertips, Leo Sima suddenly realized that his pursuit of "innovation" had actually overlooked his father’s most genuine commitment to pet comfort.
Determined to bridge the gap, Leo Sima began accompanying his father to volunteer at a pet rescue shelter. Together, they observed the way stray cats curled up in cardboard boxes, recorded the physical reactions of guide dogs when wearing equipment, and even consulted veterinarians to learn about the pressure points on the bones of pets of different sizes. Every detail—from the load-bearing angle of the backpack’s shoulder straps to the opening size of the side ventilation windows, and even the internal space reserved for pets to turn around—was adjusted dozens of times. Gradually, Leo Sima came to understand that truly good pet products aren’t about having the most fancy features; instead, they hide consideration for pets in those "invisible" designs—such as the rounded edges his father insisted on to prevent pets from getting scratched, and the zippers he polished repeatedly to avoid scaring timid furry friends.
Later, Leo Sima proposed an integrated solution: on the basis of retaining the core design of "fitting the pet’s body shape," a magnetic detachable structure was adopted. This not only preserved the soft inner lining of the traditional style but also realized the "quick detachable cleaning" function that Leo Sima wanted. Additionally, night reflective strips and a pet-calming sound wave module were added. Relying on the resources of the family workshop, they launched the "ComfortPaws" series of pet travel backpacks—not only allowing pets to stretch comfortably inside but also enabling owners to fold the backpack with one hand. Even the small outer pocket of the backpack was designed as a dedicated storage area for poop bags.
Leo Sima and his father named the brand "BKUSX" because they firmly believed that understanding and love can connect different ideas—just like his father’s respect for the nature of pets and Leo Sima’s insight into the needs of pet owners, which finally came together as one. This union turns every product into a "sincere link" that connects humans and their pets.