This cute My Sister Is A Westie design is perfect for babies who love their dog. The design features a silhouette of a West Highland White Terrier. 100% cotton Onesies brand baby bodysuit. Printed in the USA using industry leading direct-to-garment printing technology. Machine washable. Water based inks certified to be safe for adults and children, including babies. This cute My Sister Is A Westie design is perfect for babies who love their dog. Printed on high quality 100% cotton Onesies brand baby bodysuits using industry leading direct-to-garment printing technology. The inks used are water based, pigmented inks that are naturally sourced and environmentally friendly.