Style notes. Killer costumes for tricking or treating. Halloween only comes once a year, so you'd better make sure you nail your 'fit! Whether you're heading out trick or treating or staying in for a scary movie marathon, we've got everything you need for dressing up - choose from comfy t-shirts and joggers to fun themed socks and boxers. Or how about a cheeky halloween onesie for chillaxing in? We've also got masks and accessories, so if you're heading out to a fright-night party you'll be sure to look the part. Just don't forget a bucket for all those sweets! For hygiene reasons, underwear & swimwear cannot be returned or refunded. For more info, please see our return policy. Style: boxers. Design: patterned. Fabric: cotton. Details & care. 95% cotton , 5% elastane.