Mammoth TUFF 2025 T-shirt Size:L Purchase your shirt on the

Purchase your shirt on the BikeReg Merch page to secure your size preference as we'll prioritize the merch orders at check-in

For 5 pair

If you want to secure a shirt after July 13

Similar listing with material and sizing description: Sockguy TurboWool

enter 4for46 at checkout for $12 off

Mammoth TUFF 2025 T-shirt Size:L Purchase your shirt on theDesign by Randy Noborikawa, inspired by Rob Roskopp. Registrations before July 13, 2025 at 11pm PST are guaranteed a free shirt. All registrations after July 13 will receive items as supplies last. If you want to secure a shirt after July 13, purchase your shirt on the BikeReg Merch page to get your size preference as we'll prioritize the merch orders at check in. BikeReg purchases will not pay shipping and pick up is in person. Sizing requests by