What Our Gearhead® Experts Are Saying:"This base layer is my secret weapon for warm rides. It’s super lightweight and breathable, keeping me dry and comfortable even when the pace picks up. The seamless design is barely noticeable under my jersey, and it fits snugly without restricting movement. It’s an essential layer for summer training and racing."When temperatures rise, the ASSOS 1/3 Sleeveless P1 Base Layer ensures we stay cool and comfortable on every ride. Constructed with high-performance moisture-wicking fabric, this lightweight base layer draws sweat away from our skin, keeping us dry and focused on the road. The sleeveless design and seamless construction provide a barely-there feel, enhancing comfort under any cycling jersey. Designed to adapt to warm weather conditions, the P1 Base Layer is a key component for serious cyclists who want to maintain comfort and performance in hot weather.