With a full bellows tongue and a waterproof leather upper, Thunder is made to keep out the elements. Constructed to a new extreme comfort shape, the design also features a robust speed lace system to make wearing them even more efficient and comfortable. The boot is incredibly lightweight with a composite toecap and midsole, and features the innovative IGS rubber sole unit to ensure superb grip on all surfaces and increased cushioning underfoot.
Waxy smooth leather upper: with minimal seams enhancing the waterproof qualities. Full bellows tongue and soft padded collar. Non-snagging speed lacing system.
Waterproof lining that is breathable to reduce perspiration.
Heel pump shock absorbing footbed. Contoured to support the foot, with air channels to wick moisture and reduce heat build up and odour.
Wide fitting composite non sparking and thermal insulating. Tested to impact of 200 Joules.
A woven fibre midsole designed to protect from sharp objects entering underfoot.
Inspired by tyre technology and made from highly durable rubber, the IGS sole unit features a unique hexagonal tread ensuring superior traction, ladder grips offering firefighter levels of safety and a re-designed heel strike pad delivering exceptional water dispersal. The IGS is heat resistant to approximately 300°C. Non-marking and resistant to diesel, fat, acid and alkali.