milestone Heatwave Titanium Hoody

Remarkable warmth, under 300g

The Heatwave Titanium Hoody is a lightweight insulated hoody built first and foremost to keep your body warm when you stop moving. A 10-denier mini-ripstop nylon outer is paired with a titanium-sputtered lining that efficiently circulates the heat your body gives off, plus a Climashield® APEX (100% polyester) fill with a proven track record in military use — bringing together warmth, breathability, durability, light weight, and packability at a high level. It's a piece you can rely on the moment you stop on a hike or fastpacking trip — at a hut, a tent site, or waiting out the wind on a ridge.

How the titanium-sputtered lining works, and its warmth efficiency

The titanium sputtering on the lining is a process that fixes titanium onto the surface of the fabric. It efficiently reflects and circulates the heat your body radiates, so you feel warm soon after putting it on. Rather than relying on a fabric that generates heat on its own, it works by making use of heat that would otherwise escape — so it delivers warmth without adding weight or bulk. Even around the chest and stomach, areas that feel outside air most when you stop moving, you get solid warmth from a thin loft.

What the Climashield® APEX insulation brings

The insulation is Climashield® APEX (100% polyester). It offers excellent warmth for its weight, and its durability is well regarded for a use pattern built around repeated packing and carrying. With a track record that includes military adoption, it's an insulation suited to staying compact to carry while still delivering real warmth when you need it. It secures the quality of loft that holds your body temperature while you're stopped, without adding weight.

Details that keep warmth from escaping while you're stopped

• Double zipper: opens from top or bottom, letting you make fine adjustments — venting trapped heat while stopped, or loosening just around the waist.
• Thumbholes: keep cold air from creeping in at the cuff and hold warmth to the back of the hand. Handy during a wait that isn't quite long enough to switch to gloves.
• Hood: a rear drawcord gives a quick fit adjustment. With no cord across the face, it stays comfortable without catching on your cheeks or mouth.
• Hem drawcord: cuts cold air at the hem and holds the air layer around your torso. Effective on a windy ridge or in the cold before dawn.
• Asymmetric zipper: routed so it won't rub your chin, staying comfortable even zipped all the way up.
• Hand pockets: a warm knit material on the back-of-hand side eases the chill in your fingers while you wait.
• Packable: the body packs into the left pocket. Thanks to the pocket's knit lining, it also works as a simple pillow at bedtime.
• Detail: an "81" milestone icon on the lower back.

Portability and weight by size

Being compact enough to fit in a spare corner of your pack translates directly into warmth you can actually bring into the mountains. It's built to pack into its own left pocket, so it's easy to get in and out. Weights are as follows (individual pieces vary).

• XS: 238g
• S: 258g
• M: 273g
• L: 298g
• XL: 310g

At 273g in a size M, it's on the light side for a synthetic-insulated piece, yet the titanium sputtering means you feel the warmth from the moment you put it on.

Where it works on a hike or fastpacking trip

This is a hoody that comes through at the moments you want to warm back up — stopping for a break or to take photos, cooling down after you've worked up a sweat, or heading out before dawn. At a hut, a tent site, or a spot exposed to ridge-line wind, you can fine-tune it with the double zipper and hem drawcord to keep your core from losing warmth. It also comes in handy before and after a trail race, or while cheering someone on.

Materials, outer-fabric toughness, and comfort

The outer fabric is a 10-denier mini-ripstop nylon — light and tear-resistant, suited to a use pattern with repeated packing and putting on and taking off. The combination of the titanium-treated lining and the insulation delivers warmth efficiency that doesn't rely purely on loft, while keeping a comfortable feel that doesn't trap excess moisture. It's designed to manage your body temperature efficiently through the rhythm of stopping and moving again on the trail.

Specs