Red Wing Boa lace up 8" boot designed specifically for the rugged requirements of offshore drilling operations. Manufactured from Cordura and ballistic nylon, this model also benefits from the Boa lacing system which enables the wearer to quickly don or doff them as required.  The Boa system is manufactured from aircraft grade stainless steel and then plastic coated to aid movement through the lacing structure. This type of lacing system ensures a good tight even fit which once tightened to the users preference is 'locked in'. Fully waterproof