Personalized Grateful And Kind Positive Vibes Summer Vibes T-Shirt. Whether you're at the beach, a picnic, or just enjoying a sunny day, this apparel is a stylish choice. Wear it to inspire others and celebrate the joy of summer! Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.