This deal has ended.
Update: This deal is now dead! For a limited time, Crocs drops the price of the Kids Mammoth from $24.99 to $14.99 and the Men's and Women's Mammoth from $29.99 to $19.99. Plus, code CROCSAFF10 stacks to drop the prices to $13.49 and $17.99. To top it all off, shipping is free! There's no sales tax (except CA, CO).