APL: Athletic Propulsion Labs Lusso Pool Slide in Slate. Size 10, 6, 7, 8. Textile upper with rubber sole. Slip-on styling. 3D molded footbed with accented APL logo. Padded water resistant footbed and strap. Lightweight Propidium midsole. AHPR-WZ358. 2-4-017-225-479. Athletic Propulsion Labs offers unique sportswear that fuses technology, performance and fashion, enabling athletes to maximize their potential in all aspects of their life. The revolutionary products symbolize the ultimate intersection of design and performance.