This is a fleece jacket from Montbell. It has ventilation under the arms. Please note that part of the tag has been cut off (see image). - Brand: ZEROPOINT (mont-bell) - Size (Japan): M - Material: 100% Polyester (POLARTEC), Patch fabric 100% Nylon - Technology: CLIMABARRIER (windproof and breathable) - Made in Japan * Please refrain from purchasing if you are looking for a perfect condition item or are overly concerned about details. * Please check the product description and images carefully, and only purchase if you understand and agree. * Due to a private transaction, returns, exchanges, and refunds are not accepted (a video recording of the packing and shipping process will be made). * Please understand that the item may be simply packaged or folded small depending on the item. Please purchase only if you agree to the above. Thank you very much.