I am getting a vest and blanket for my 3 year old. I think definitely washable, adjustable on top of clothes, see I have a little guy that is alreadt in size 8 to 10 clothing and being autistic hes not going to allow something like that close to his skin. I also think decent arm holes and neck. Being able to add weight as child grows. Colors etc idk, but stain resistance might be okay, and maybe an area close to neck to add something scented. Like a moist towel with essential oils. Resonably priced. Same concept with blankets.