Rainbow shorts are commonly made from cotton-based blends and mixes of cotton with synthetic fibers. Examples in the listings include 80% cotton/20% polyester blends, 95% organic cotton with spandex, rayon/cotton/polyester/spandex blends, and cotton blended with recycled polyester.
The most common constructions are loop terry (French terry) and jersey/knit. Examples called out in the listings include premium loop terry fleece, French terry, and jersey knit.
Many rainbow shorts use pull-on or elastic waistbands, often with drawstrings for adjustment. Some denim-style shorts use traditional zipper closures.
Common color treatments include tie-dye and bright multicolor or rainbow-stripe prints. The listings mention neon bright tie-dye, individually tie-dyed pieces, and rainbow stripes down the sides.
Many styles feature two deep side or scoop pockets. Denim varieties often list the standard front-and-back pockets (five-pocket style).
Most items are listed as Regular fit. Rise options shown in the listings include Classic/Regular, Mid Rise, and High Rise, depending on the style.
At least one women's description lists sizes from S to 3X. Kids' sizing appears in both age-based formats (for example, "4 Years" and "10 Years") and letter sizes such as XS and X Large.
Certifications appearing in the listings include the Global Organic Textile Standard (GOTS), references to Fair Trade certified factories, and OEKO-TEX STANDARD 100 labeling.