89% matchTrew Gear
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Icebreaker
StyleGorpcore / OutdoorAthleisure / SportswearMinimalist / Contemporary
Known forTopsOutdoor & technical
Icebreaker makes merino wool base layers, T-shirts, mid-layers, socks and accessories for hiking, skiing, running and travel, built on a "farm to garment" supply chain using ZQ-certified New Zealand wool from non-mulesed flocks. Core products include 150 Tech Lite tees, 200 Oasis and 260 Tech base layers, plus wool fleece and insulated outer layers. The brand pushes toward plastic-free, natural-fibre construction and publishes supplier transparency reporting. Jeremy Moon founded it in 1995; VF Corporation has owned Icebreaker since completing its purchase in April 2018, pairing it with Smartwool.
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How Icebreaker fits
| Category | Runs | Shape | Length | Size advice | Confidence |
|---|---|---|---|---|---|
| Hoodies & sweatshirts | slightly small | athletic mid-layer cut, close through the torso and arms | regular to long body, hood sized to fit under a shell | Size up if you intend to wear it over a thicker base layer or want room to move. | medium |
| Trousers & pants | true to size | close-fitting merino leggings and slim, lightly tapered travel/hike pants | regular to long inseam | Order your usual waist size; base-layer bottoms are meant to sit snug, so avoid sizing down. | low |
| Jackets | true to size | trim technical outerwear shape with a defined waist, room designed for one or two layers underneath | regular, hip-length on most | Stick with your normal size for layering over a base and mid-layer; only size up for bulkier layering systems. | low |
| T-shirts & graphic tees | slightly small | trim, gently tapered rather than boxy; 150 Tech Lite reads as a relaxed-athletic tee while 200 Oasis is a close base layer | long in the body with a slightly dropped hem and long sleeves | Take your usual size for the intended close fit, or go up one if you want a casual, non-clingy tee. | medium |
Does Icebreaker run big or small?
Icebreaker fits slightly small. Most people find their usual size works if they want the intended next-to-skin fit, but size up if you have a broader chest, prefer a relaxed drape, or plan to layer. Icebreaker is usually described as cut slim and athletic with a long body, so it fits close to true to size for lean builds while broader or larger-chested wearers often report needing one size up.
How does Icebreaker fit?
Icebreaker is usually described as cut slim and athletic with a long body, so it fits close to true to size for lean builds while broader or larger-chested wearers often report needing one size up. Overall shape: trim, athletic cut through the chest and waist with a fairly close base-layer feel.
How do Icebreaker hoodies & sweatshirts fit?
Icebreaker hoodies & sweatshirts fits slightly small. Size up if you intend to wear it over a thicker base layer or want room to move. Shape: athletic mid-layer cut, close through the torso and arms.
How do Icebreaker trousers & pants fit?
Icebreaker trousers & pants fits true to size. Order your usual waist size; base-layer bottoms are meant to sit snug, so avoid sizing down. Shape: close-fitting merino leggings and slim, lightly tapered travel/hike pants.
How do Icebreaker jackets fit?
Icebreaker jackets fits true to size. Stick with your normal size for layering over a base and mid-layer; only size up for bulkier layering systems. Shape: trim technical outerwear shape with a defined waist, room designed for one or two layers underneath.
Directional fit consensus summarized from public sources with AI — a starting point, not a guarantee. Confirm with the product's own measurements before buying.
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