Long sleeves

material : 50% cotton 50% polyester 

fit: oversized 

design: a hardcore department uniform for those who live hard and lift hard 

Material: 100% knitted cotton 

fit: regular

design: simple plain front and ironflex crafted logo in the back 

Material: 100% knitted cotton

fit: oversized 

design: made for heavy duty bodybuilders 

Built for the grinders, forged for the old-school. The IronFlex Lumberjack Flannel brings back the raw 90’s workwear spirit — heavyweight cotton blend, soft brushed feel, and a rugged maroon x black check pattern that screams hardcore.

Designed for lifters, riders, and workers of iron, this flannel delivers durability and comfort both in and out of the gym. Finished with signature IronFlex detailing, double chest pockets, and a classic cut that fits like it’s made for the trenches.

The IronFlex pump cover  Flannel is built for lifters who take their hardcore identity everywhere — from the weight room to the streets. With its bold red × black buffalo plaid, this flannel fuses bodybuilding heritage with urban style, making it the ultimate crossover piece for training and lifestyle.

• Hardcore Identity: Bold IronFlex aesthetic for lifters who live the culture 24/7.
• Street & Gym Ready: Wear it for heavy lifts or as a statement piece on the streets.
• Utility Design: Dual chest pockets with button closure for a rugged finish.
• Durable Comfort: Premium flannel fabric that’s breathable, tough, and built to move.

The IronFlex pump cover  Flannel is built for lifters who take their hardcore identity everywhere — from the weight room to the streets. With its bold red × black buffalo plaid, this flannel fuses bodybuilding heritage with urban style, making it the ultimate crossover piece for training and lifestyle.

• Hardcore Identity: Bold IronFlex aesthetic for lifters who live the culture 24/7.
• Street & Gym Ready: Wear it for heavy lifts or as a statement piece on the streets.
• Utility Design: Dual chest pockets with button closure for a rugged finish.
• Durable Comfort: Premium flannel fabric that’s breathable, tough, and built to move.