- "Dia De Los Muertos” or “Day of the Dead” is actually a colorful celebration of life in Mexico. The onesie is made from ultra-soft 100% organic cotton, featuring a three-snap front facing closure and an easy over-the-head shoulder design. We make our onesies here in the USA and grow our cotton without harmful pesticides, fertilizers, or chemicals. We also use water-based dyes and low-impact printing methods that makes for one super gentle, earth loving, home-grown onesie. Designed by Loomstate, made in the USA.