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Costco Wholesale [costco.com]has for their Members: 2-Pack Caterpillar Men’s Short Sleeve Logo T-Shirt on sale for $ 12.97 ($ 6.49 each). Shipping is free.

Note, must be a active Costco Member and logged into your account to purchase at sale price from Costco. Non-Members may purchase but are subject to a 5% surcharge.