Attention: S size is only for toy and tiny breeds and cats. Please do not try to fit any medium or large breeds. Adjustable Drawstring: Keep stability with any outdoor activities. Excellent Sun Protection: Wide brim ensures eyes will be fully protected against the sun but the sight will remain unaffected. Excellent Sun Protection: Wide brim ensures eyes will be fully protected against the sun but the sight will remain unaffected. Different Size and Color: Four different sizes are available, make sure you can find the right one for your buddy from small breed to large ones. Premium Material: Water-Resistant and Pet-Friendly material keep your dog dry and comfortable all the time. Breathable Design: With two Ear Holes on top and Breathable Material, keep cool and comfortable even if worn for a long time.