Are soft foam hip protectors as effective as hard shell models?

Premium soft foam protectors using D3O or SAS-TEC can achieve the same CE Level 1 and Level 2 certifications as hard shell models, meaning they meet the same minimum protection standards. However, hard shell models typically transmit slightly less force within each certification level due to the shell's force distribution effect. For most recreational skiers, the difference is clinically insignificant, and the superior comfort and wear compliance of soft foam makes it more effective in practice—because the best protector is the one you actually wear.