Kirkland Signature 680 Thread Count 6-piece sheet set crafted from 100% USA-grown Pima cotton for exceptional softness and durability. This California King set includes 1 flat sheet (108" x 106"), 1 fitted sheet (72.5" x 84.5" x 18" deep), and 4 king pillowcases (21" x 41"). Made in India with premium Pima cotton fiber known for its extra-long staples that create smooth, strong, and luxurious fabric.

The fitted sheet features Grip-On corner fit technology that keeps the sheet securely in place and prevents shifting, accommodating mattresses up to 18" deep. Crease Control technology provides wrinkle-resistant smoothness for easy bed making. An orientation label takes the guesswork out of positioning the sheet on your mattress. The 680 thread count creates a silky sateen finish that feels incredibly soft against the skin while remaining breathable for comfortable year-round sleep.

Available in multiple colors including white, light gray, light taupe, and light blue. Machine washable in warm water, tumble dry low, and remove promptly to minimize wrinkles. Warm iron as needed. Consumer Reports testing found these sheets perform well for strength, fit, shrinkage control, wrinkling resistance, and softness. Customers particularly praise the thick elastic corners that stay secure, the quality of the Pima cotton that resists pilling, and the balanced thread count that provides comfort without overheating.