SAXX Subzero Long John Fly - Stealth Black Price: $ 74.00 Select Size: Size is a Required Field. XS S M L XL XXL Quantity: Quantity is a Required Field. Add to bag Checkout Details Saxx underwear is designed to fit better. Every pair of Saxx features a breathable inner comfort pouch for support, keeping you cool, dry and comfortable whatever you're doing. The ultimate base for winter activities. Sub-Zero is engineered to provide warmth and wind block performance when the temperature drops. Wind-block front panel. Winter weight fleece.