I/O Bio Merino Signature Merino Hoody - Women's: Strong enough to stand alone but mild enough to be a base layer on extreme days, or anything else you find to use it for, I/O Bio Merino Signature Hoody will blow your mind. Combine comfort and style and toss some warmth and innovation into the mix and what you get is the ultimate must have for the season, the I/O Bio Merino Signature Hoody.