The S15 features 13 drawers equipped with ball-bearing slides and soft-close technology, ensuring full access to contents while maintaining stability through an integrated anti-tilt drawer-blocking system. Beyond its storage capacity, the box includes practical shop-floor necessities such as a stainless steel worktop, spray can holders, and a dedicated paper roll mount. These features are housed within a frame designed to withstand the heavy-duty demands of automotive, aviation, and manufacturing environments.

CCO Sanjay Patel emphasized that the S15 serves as a final upgrade for technicians, specifically designed to maintain compatibility with existing Sonic Foam Systems. Users transitioning from smaller models can transfer their current foam inserts directly into the S15 without modifying their configurations. This modular approach allows for seamless scaling, as each drawer accommodates two medium foam inserts, enabling shops to adjust their storage density and workflow without the need to overhaul their entire organizational structure.