At DocHorse, you find a large variety of summer sheets for your horse. A summer sheet is ideal for use during chilly summer days, nights and the transition from winter to summer, and summer to fall. Most summer sheets are made of cotton or similar material. Summer sheets are not waterproof, making them breathable and perfect for warmer days. The cooler rugs we have in our DocHorse range are summer sheets made of a special mesh fabric, or a cotton/ fleece mix with mesh. Cooler rugs are perfect for use during transportation, competitions or keeping your horse clean after a bath.