Competitive pressures, associated with the bargaining power of suppliers, is definitely the strongest of the five competitive forces as there are not many suppliers of performance fabrics.

The collective strength of the five competitive forces facing Under Armour, Nike, the Adidas Group, and other sellers of athletic apparel, footwear, and accessories is moderate to perhaps "moderately strong."

Substitutes alone is the strongest of the five competitive forces, as consumers can choose to purchase at lower prices and comparable quality.

None of the competitive forces is relatively strong in this industry.