My Peak Challenge Checkout

Choose your free membership gift pack*

*Shipping fees apply

*Please click update after making your size selection.

Important Information:

Shirt Sizing

Member T-shirts cannot be exchanged or returned, so please carefully consult the size guide before selecting your membership gift. To compare measurements, place a shirt that fits you well on a flat surface and measure it across the chest, from armpit to armpit. Compare that number to our size guide for the best fit.

Note that this year’s women’s shirts are NOT the same style as previous years. While they remain more fitted than unisex shirts, they are not as fitted as the previous style. We recommend carefully consulting the size guide when making your shirt selection.

Please allow 6-8 weeks for domestic (U.S.) shipping and 7-9 weeks for international shipping.

Checkout Instructions

Be sure to click the UPDATE button after selecting your shirt style and size.

Please adjust any special characters in your name and address to ensure proper delivery of your membership gift pack. Diacritical marks (´, `, ¨, ˆ, etc.) and non-English letters and characters are not compatible with our mailing system.

Billing details

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Shipping Address

Your order

Product Subtotal
× MPC2023 Membership  × 1 $149.00
Subtotal $149.00
Total $149.00

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50% of net membership dues (after returns, discounts, and credits, costs of goods in membership package, fulfillment, credit card, and administrative fees) constitute at least 30% of purchase price.