OLIE mats are designed to remain grippy even during the sweatiest flows and workouts. It's worth noting however that OLIE mats are not specifically designed to be used for hot yoga. This is due to the design of the yoga mat, which gives it it's incredible grip and recyclable, eco-friendly properties. Whilst many OLIE users love using their mat during their hot yoga sessions, using the mat regularly in hot and humid environments will reduce its lifespan.