Nitro Sub Zero Snowboards available with fast shipping and freebies at Proboardshop. A high end urban and park snowboard, the Mens Nitro Sub Zero is amazingly versatile and easy to ride. The Sub Zero features their Combat core which is indestructible and their easy-to-ride Gullwing Camber. Proboardshop will rock your new Nitro out within 24 Hours of your order Monday-Friday. Proboardshop. We have it all.