Mammoth TUFF 2024 T-shirt

Design by Randy Noborikawa, inspired by Steve Caballero.

Registrations before July 14, 2024 at 11pm PST are guaranteed a free shirt. All registrations after July 14 will receive items as supplies last. Purchase your shirt on the BikeReg Merch page to secure 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 July 14 will influence our final order count. Thanks for understanding and helping the process.

If you will not be at Mammoth TUFF, purchase your shirt here and we will mail your shirt per the shipping details in your order when the inventory arrives.

SHIPPING DATE TBD: We will keep you updated as inventory delivery approaches.