Technical Notes - A superior performer, thanks to the integration of the ultra-lightweight shell and an advanced compression inner. Colour Notes- Introducing Riverstone, a luxury marble-grey with a subtle tonal effect between the outer shell and inner liner. Sustainability Notes - Constructed using recycled polyester.Size Guide - Fit is true to size. If you are between sizes please size down to optimise inner liner performance. Ramone is 6ft with a 30" waist and wears M. Shai is 6ft2 with a 29" waist and wears M. Men's 2-in-1 Running Shorts with integrated ultra-lightweight outer shell and advanced compression inner layer. Anti-chafe design, fast-drying fabric, and secure storage. Engineered for all distances and training conditions. Sustainable performance running shorts from Acid Running in Riverstone Beige. Men's 2-in-1 Running Shorts with integrated ultra-lightweight outer shell and advanced compression inner layer. Anti-chafe design, fast-drying fabric, and secure storage. Engineered for all distances and training conditions. Sustainable performance running shorts from Acid Running in Riverstone Beige.