I don't think anything was unused, but everything has been used about 1-3 times. When used, the harness was worn over the clothes, so there may be some minor scuffs. It was worn by a dog weighing about 6.3kg. Please check the size details on each manufacturer's website. I apologize that the functions are vague, but they are as follows: * Contact cooling: Almost all have it (⑧ Full Cool feels cold even as is, but it has an instant cooling function, and it gets even colder by wetting it → wringing it → shaking it 5-6 times.) * Insect repellent: Pet Paradise has it, and it's possible the others had it too, but it's unknown. ② Pet Paradise Field Glide S size ③ D's chat XL size ④ Can Nana L size ⑤ Inu to Seikatsu (Dog Life) 4 size ⑥ Radica LL size (Slight stain on the back) ⑦ Radica LL size ⑧ Full Cool 5 size * I am not considering selling them individually. * They may be compressed and sent in simple packaging. * I am listing them at the lowest price, so please refrain from price negotiations. * Please understand that these are used items and stored at home before making a purchase. * Immediate purchase is OK. * I check Mercari about once a day, so I may be slow to respond to comments. #PetParadise #DsChat #Cannana #Radica #fullcool #DogClothes #DogWear