Manduka guarantees the Black Mat PRO®, Manduka PRO® and PROlite® yoga mats to be free of manufacturer defects and to last a lifetime, if used and cared for properly. Since the The PRO Squared is a multi-purpose mat, it is not included under the Lifetime Guarantee. Should a PRO mat not meet Manduka's standard of quality at the time it is received, or if  it wears out from regular use under normal conditions, we will replace the product. Damage resulting from improper handling or care, post-purchase modifications, alterations, negligence, and use for a purpose other than for which it was designed, are not covered by the Manduka Guarantee.

Acceptable Criteria Covered Under the Guarantee:

• Surface imperfections, such as gouges, slices or divots found at the time of purchase before use
• Worn out or peeling top or bottom surface from regular use
• Undefined surface pattern (no fabric-like finish)
• Mats purchased after September 1st, 2008 

Unacceptable Criteria Not Covered Under the Guarantee:

• Uneven color patterns, stains, or discoloration at time of purchase or from use
• Creases and folds from improper handling and/or storing. It is best to lay the mat flat or keep it rolled up.
• Damage from excessive amounts of water or other liquids i.e. submerging the mat under water
• Improper cleaning i.e. harsh chemicals, damage from a washing machine, vacuum cleaner, etc.
• Damage from use other than yoga or similar fitness activities
• Damage from outside elements or factors
• Normal wear and tear of prints such as fading, flaking or peeling
• Mats purchased before September 1, 2008
• Mats marked as "Irregular" at time of purchase
• The PRO Squared is not included under the Lifetime Guarantee

Ref: Manduka Lifetime Guarantee