Under Armour offers its Under Armour Women's Play Up Short-3 Shorts in 37 colors (Aqua Blue pictured) with prices starting from $14.24. Coupon code "DNFREESHIP" bags free shipping. Excluding the mention below, that's the lowest total price we could find in any color by $5. They're available in sizes XS to XXL, although not in all size/color combinations. Deal ends January 31.
Of note, Amazon offers very limited sizes and colors for under $10 with free shipping for Prime members.