The perfect accessory for your dogs "patriotic wardrobe"! Now your pet can show his/her patriotism all year long in the "Navy Flag" fleece hat by Barking Baby! Dimensions: If your pets ears stick up measure the space in between to see which size will fit comfortably. For pets whose ears are down size is open to personal taste. X Small 2 3/4'' Across Small 3 1/2'' Across Medium 4'' Across '