Alo Womens Ribbed Prosper Tank Black

Alo Womens Ribbed Prosper Tank Black scores 57/100 on Scout's independent analysis of ingredients, additives, and lab results — a below-average score in Scout's analysis. 95% Cotton with 5% Elastane — natural fiber base with elastane adding microplastic shedding risk.

Alo Womens Ribbed Prosper Tank Black ranks #12 of 16 workout tanks in Scout's independent rankings. The current top score in the category is Layere Organic Cotton Racerback Tank With Built-In Bra at 95/100.

In Scout's ingredient-by-ingredient analysis, Cotton counts in its favor; Elastane is flagged as an ingredient of concern. The full breakdown, with why each one matters, is in the Key ingredients section on this page.