Why did the chicken cross the mobius strip? To get to the same side. BAZINGA! Get ready to spread Christmas cheer and flaunt the iconic catchphrase created by our favourite geek, Sheldon Cooper! Showcasing winter colours of red, black and white, this sweater sports a traditional Nordic design featuring snowflakes and all sorts of geeky details dotted around.Official Warner Bros / The Big Bang Theory product.Designed and engineered by Numskull Designs.100% knitted (not printed).Made from Premium quality yarn for extra comfort.Unisex design and fit, and can be worn all year round.Features detailed front and back knitted design.Available in various sizes. UK, EU and AUS - XS, S, M, L, XL, 2XL, 3XL, 4XL and US - 2XS, XS, S, M, L, XL, 2XL, 3XL.