We are unfortunately unable to offer exchanges regarding different products.
What we would recommend is that you return your item for a refund (pending it's condition) and place a new order on the on the HS shop site so that we can ensure the stock is reserved for you. Bear in mind, if you won't see your size or your product on our shop, that means it has been sold out.
Please note: If an item is returned to us in a condition that is not sellable (unless stated otherwise) the item/s are unfortunately not eligible for a refund.
For all other questions, please email shop@highsnobiety.com.