Personalized Hippie Groovy Spooky Season Halloween Costume Spooky Season T-Shirt. Whether you're channeling your inner flower child or simply looking for a fun and funky Halloween outfit, this costume is a perfect fit. Pair it with accessories like peace sign jewelry or retro sunglasses to complete your look. Celebrate the spooky season in style with this one-of-a-kind Hippie Groovy Halloween costume that combines nostalgia with a touch of ghostly fun. 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.