Castelli’s Espresso 2 Shoecovers deliver instant protection and warmth for cold, damp rides. Polartec® AirCore provides breathable insulation and there's a silicone-elastic cuff to seal out drafts. The windproof, splash-resistant design includes a zip protector to prevent chafing, reflective trim for visibility, and an adjustable Velcro strap for a secure fit over road, gravel, or MTB shoes—making these overshoes a highly versatile addition to your winter weather kit. Recommended for 32-57 degree temperature range.