Chrome x Rab Downpour Pant

The Chrome x Rab Downpour Pant is a pair of lightweight, waterproof rain pants developed for bike commuting. Chrome and British brand Rab have combined Chrome's experience making clothing for urban cycling with Rab's expertise in technical shell garments. The result is a pair of rain pants made for cycling in—not just a pair of regular shell pants that happen to work on a bike.

The fabric is Rab's 20D Proflex™ in a stretchy 2.5-layer construction with a 20,000 mm hydrostatic head and a stated breathability of 20,000 g/m²/24 h. It provides solid rain protection while helping moisture and heat escape as you pedal. The surface has a fluorocarbon-free DWR treatment, and the lightweight 72 g/m² fabric makes the pants easy to pack in your bag when the rain lets up.

The fit is Regular, but the cut is adapted for cycling, with pre-shaped sections that allow freedom of movement while seated on the bike. Zipped ventilation openings along the sides let you release excess heat when the pace picks up, a major advantage over simpler rain pants where you can easily end up almost as wet on the inside.

The ankles are slim to keep excess fabric away from the drivetrain, but can be opened with a gusset so the pants can be pulled on over shoes. Reflective panels on the calves and thighs also provide extra visibility when light hits them in the dark.

Cycling in the rain is rarely much fun, but the right rain gear makes a big difference. The Downpour Pant is for those who commute by bike even when the forecast looks bad and want rain pants that combine serious weather protection with stretch, ventilation, and low weight. When the weather improves, they take up little space in your bag and are ready for the next time the skies open.

Quick Specs

• Model: Chrome x Rab Downpour Pant
• Type: Waterproof rain pants for bike commuting
• Material: Rab 20D Proflex™ stretch-woven nylon
• Construction: 2.5-layer
• Waterproof rating: 20,000 mm hydrostatic head
• Breathability: MVTR 20,000 g/m²/24 h
• Fabric weight: 72 g/m²
• Finish: Fluorocarbon-free DWR
• Fit: Regular with a cycling-specific cut
• Stretch: Yes
• Ventilation: Zipped side vents
• Ankles: Slim, with zip openings and gussets so they can be pulled over shoes
• Reflective details: Panels on the calves and thighs
• Packable: Yes
• Use: Bike commuting and urban cycling in the rain