Retrospec Solana 1″ Thick Yoga Mat – Blue Ridge, Non Slip, w/ Nylon Strap Retrospec Solana 1″ Thick Yoga Mat – Boysenberry, Non Slip, w/ Nylon Strap. EASY TO CLEAN: Solana is easy to keep clean and fresh for your next workout. Use a mix of gentle soap and water, wipe clean, and hang it to dry.