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Icebreaker Men Merino 125 Cool-Lite Speed SS Tee - black
Our lightest, most breathable performance tee featuring Cool-Lite™eyelet mesh throughout, the Merino 125 Cool-Lite™ Speed Short Sleeve Tee is ideal for running and any other high-intensity pursuits in warm conditions.
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Find more products here
- The Merino 125 Cool-Lite™ Speed Short Sleeve Tee is icebreaker’s lightest, most breathable performance tee, made entirely of Cool-Lite™eyelet mesh for unparalleled ventilation and temperature regulation. Ideal for running and other high-intensity pursuits in warm conditions, this tee’s Cool-Lite™ eyelet mesh fabric uses an airy blend of TENCEL™ and natural merino wool to keep you cool when you’re on the move. Offset flatlock seams enhance fit and reduce friction, while 360˚ reflective details keep you visible in low light conditions. Soft merino wool and TENCEL™, a sustainable plastic-free lyocell, combine to create icebreaker Cool-Lite™, a lightweight, breathable and quick drying fabric.Inspired by nature, icebreaker harnesses the performance qualities of natural fibres to offer an alternative to clothing based on petrochemical synthetics.
- Cool-Lite™ - Breathable and lightweight fabric blend designed to help keep you cool; Offset shoulder seams to prevent friction; 360 Reflective details; Underarm panel for mobility and to prevent friction; Forward side seams for enhanced fit; Eyelet mesh for ventilation and visual texture; Flatlock seams
- 60% LYOCELL, 40% WOOL EXCLUSIVE OF DECORATION
- MACHINE WASH COLD, GENTLE CYCLE. WASH WITH LIKE COLORS. DO NOT USE SOFTENER. DO NOT BLEACH. DO NOT TUMBLE DRY. LINE DRY IN SHADE. COOL IRON. DO NOT DRY CLEAN.
Icebreaker Size Chart
This chart is tailored to the current Icebreaker assortment at Fit-und-Warm: base layers, tops, pants/leggings, gloves, socks and headwear for women, men and children.
Men – Tops
| Size | Chest (cm) | Arm length (cm) |
|---|---|---|
| XS | 84–89 | 85–85.75 |
| S | 89–94 | 85.75–86 |
| M | 94–102 | 86–86.5 |
| L | 102–110 | 86.5–87 |
| XL | 110–118 | 87–87.75 |
| XXL | 118–126 | 87.75–88.75 |
| XXXL | 126–134 | 88.75–89.75 |
Men – Bottoms / Leggings / Pants
| Size | Waist (cm) | Hip (cm) |
|---|---|---|
| XS | 70–75 | 83–88 |
| S | 75–80 | 88–93 |
| M | 80–86 | 93–99 |
| L | 86–94 | 99–105.5 |
| XL | 94–102 | 105.5–112 |
| XXL | 102–110 | 112–118.5 |
| XXXL | 110–118 | 118.5–125 |
Women – Tops and Bottoms
| Size | Bust (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|
| XXS | 70–76 | 56–61 | 79–84 |
| XS | 76–82 | 61–66 | 84–90 |
| S | 82–88 | 66–71 | 90–96 |
| M | 88–94 | 71–77 | 96–102 |
| L | 94–100 | 77–84 | 102–108 |
| XL | 100–107 | 84–91 | 108–114 |
| XXL | 107–116.5 | 91–101 | 114–123 |
Kids
| Age / size | Height (cm) | Weight (kg) |
|---|---|---|
| 2 | 92 | 13–15 |
| 3 | 98 | 15–17 |
| 4 | 104 | 17–19 |
| 5 | 110 | 19–21 |
| 6 | 116 | 21–24 |
| 8 | 128 | 24–29 |
| 10 | 140 | 29–37 |
| 12 | 152 | 37–46 |
| 14 | 164 | 46–55 |
Gloves
| Size | Hand length (cm) | Palm girth (cm) |
|---|---|---|
| XS | 17 | 18.5 |
| S | 18 | 19.5 |
| M | 19 | 21 |
| L | 20 | 22.5 |
| XL | 21 | 23.5 |
Hand length: middle fingertip to the base of the palm. Palm girth: around the widest part of the hand, excluding the thumb. If between sizes, Icebreaker recommends the smaller size for a tighter fit or the larger for a looser fit.
Men's Socks
| Size | EU | US | UK |
|---|---|---|---|
| S | 39–41.5 | 7–8.5 | 6–7.5 |
| M | 42–44 | 9–10.5 | 8–9.5 |
| L | 44.5–46.5 | 11–12.5 | 10–11.5 |
| XL | 47–49 | 13–14.5 | 12–13.5 |
Women's Socks
| Size | EU | US | UK |
|---|---|---|---|
| S | 35–37 | 5.5–7 | 3–4.5 |
| M | 38–40 | 7.5–9 | 5–6.5 |
| L | 41–43 | 9.5–11 | 7–8.5 |
Headwear / Neckwear
Many Icebreaker Flexi Chutes and similar head/neck accessories are offered as One Size. For beanies or headbands with size choices, always use the product-specific Icebreaker size chart.
Fits
| Fit | Meaning |
|---|---|
| Slim | Snug, close-to-body fit for low-bulk layering. |
| Regular | Neither snug nor loose; worn solo or over other layers. |
| Relaxed | Loose-fitting layers for a more relaxed feel. |
Assortment check: current Fit-und-Warm Icebreaker brand page. Manufacturer sources: official Icebreaker Size Charts and current product size guides for men, women, kids and gloves on icebreaker.com. Research checked on 20 August 2026.