Travel Straps™ September 5, 2018 S Innovations Prepare your bag for air travel. Boot Trekker, Thermal Trekker, SP RXL and SP PRO are equipped with airline baggage check straps: shoulder straps are tucked behind the back panel; and the waist belt is either removed or tucked behind the back panel. BTSPPSPRXLTT More Stories Extra Tall Boot Pockets For the racer or shredder with tall boots, SP PRO will stow your boots with… Isolated Compression No zipper interference. Low profile, always-engaged compression straps for size adjustment and additional load control. Primary Pocket Store lunch, extra gloves, liners, face masks or bandanna.