Women's Black Tall Back Adjustable Wellington Boot - 9 / Black Women's Black Tall Back Adjustable Wellington Boots Size/Fit Summary: Snug fit. If you are in-between sizes, have a wider calf or want to wear a thick sock, it is recommended to size up. Designed for a flexible fit, the Original Tall Adjustable Boot mirrors the iconic Original Tall with the addition of an expandable gusset at the back. Perfect for a wider calf, these matte wellies in classic black offer ease of movement and adjust from the traditional tailored Hunter fit to a more relaxed shape when the gusset is fully extended. Handcrafted from natural rubber, the Original Adjustable boot is fully waterproof with a comfortable polyester lining and the signature Hunter Original tread. We recommend that all Hunter boots be worn with socks to protect the wearer's skin from contact with rubber.