CheePet 2012 Latest Design-Pet Dog Cardigan Outfit Shirt Clothes Coat Suit--The underlinen shown in the illustration above is not included Please check the Size Chart and the Color above; To correctly estimate the chest,you'd better add at least 1 inch to the real measured chest as the final needed chest,since the pet can not wear the suit with the exact measured chest except sweaters,so going up a size in the top line measurement is always a smart choice; 100% pured soft cotton,comfortable for your pet baby;Sexless Unisex Ambisextrous-for both boy/male dogs and girl/female dogs;Simple designed cool summer suit For body length,please keep the extentoftheerror between 0.5-2.5 inches which will not affect the use of the suit;The larger size will be better if the actual measured size falls in between a smaller size and a larger size; We can arrange replacement or refund if the suit can not fit your pet,but you need to cover the shipping fee back and forth, and do please make sure that the suit is clean and clear, no off-Odour and with original package.