Personalized Oma Bear Grandma Adult Sweatshirt. Oma Bear Adult Sweatshirt - Gold with tribal arrow and hearts for grandma on Mothers Day. Stay warm and stylish with this classic adult sweatshirt, perfect for everyday comfort. Crafted from soft, durable fabric, it features a relaxed fit for added coziness. Whether you’re lounging at home, running errands, or enjoying outdoor activities, this versatile sweatshirt is a wardrobe essential for any season.