Black Diamond UL Overmitts - Size S

Most shell mitts are too heavy or bulky to justify a spot in your pack, but the Black Diamond UL Overmitts flip that logic. These featherlight, fully waterproof overmitts live in a corner of your pack until you need emergency hand protection. Built with Pertex Shield 2.5L fabric, they deliver a 20,000 mm waterproof rating and 20,000 g/m²/24hr breathability, so your hands stay dry without turning into a sweatbox. The size S fits smaller hands and is cut to layer cleanly over a liner or light glove, making them a favourite among ultralight backpackers, trail runners, and alpine scramblers who refuse to carry dead weight.

Highlights

• Ultralight Pertex Shield 2.5L shell with fully taped seams and DWR finish
• 20,000 mm waterproof / 20,000 g/m²/24hr breathable membrane
• Elasticized cuff seals out wind, snow, and rain
• Packable to the size of a golf ball — stash them anywhere
• Unisex design, size S, intended as an emergency shell over liners or bare hands

In daily use

Pull these over a damp liner at a windy pass, or wear them alone on a drizzly ridge run. The Pertex Shield 2.5L fabric is surprisingly supple for a waterproof shell, so you keep dexterity for zipping jackets, adjusting trekking poles, or grabbing a quick snack. Because there is no insulation, the UL Overmitts work across three seasons: as a vapour barrier in cold rain, a windproof layer on exposed scrambles, or an emergency backup when your main gloves soak through. The elasticized cuff seals out wind, snow, and rain, and the whole mitt packs down to the size of a golf ball, so it disappears into any pocket or pack lid.

Full specifications

• Product Type: Overmitts
• Size: Small
• Waterproofing Technology: Pertex Shield 2.5L
• Shell Material: Pertex Shield 2.5L
• Waterproof Rating: 20,000 mm
• Breathability Rating: 20,000 g/m²/24hr
• Intended Use: Ultralight Backpacking, Mountaineering, Trail Running
• Packability: Extremely Packable
• Cuff Closure: Elasticized
• Seam Construction: Fully Taped Seams
• DWR Finish: Yes
• Insulation: None (Shell Only)
• Compatibility: Designed to be worn over base gloves or liners
• Color: Black
• Gender: Unisex

Final note

When the forecast turns ugly, these overmitts are the emergency hand protection you'll be glad you packed. Light enough to forget, tough enough to trust.