Icebreaker Men's Oasis Base Layer Short Sleeve Crewe Merino Tee

Size Guide
Size Guide Icebreaker Men's Tops

Measure Yourself:

Use the chart below to determine your size. If you're between two sizes, order the smaller size for a tight fit or the larger size for a looser fit. If your measurements for chest and waist correspond to two different sizes, order the size indicated by your chest measurement for tops and your hip measurement for pants.

 How to measure yourself:

  • Neck: Measure around the middle of your neck, leaving the tape loose.
  • Chest: Measure under your arms around the fullest part of your chest.
  • Arm Length: Measure from the back of your neck to the top of your shoulders, to your elbow, and down to your wrist bone.
Neck Chest Arm Length
Small (cm) 34-36 83-91 86.5-87
Small (in) 13-14 33-36 34
Medium (cm) 36-38 91-99 87-87.5
Medium (in) 14-15 36-39 34-34.5
Large (cm) 38-41 99-107 87.5-88
Large (in)  15-16 39-42 34.5
X-Large (cm) 41-43 107-115 88-89
X-Large (in) 16-17 42-45 35
XX-Large (cm) 43-46 115-123 89-90
XX-Large (in) 17-18 45-48 35.5
XXX-Large (cm) 46-49 123-133 90-91
XXX-Large (in) 18-19 48-52 36


Fit Guide:

Icebreaker have three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.

  • Slim Fit: A snug, close to body fit for low bulk layering.
  • Regular Fit: Neither snug nor loose - garments that are worn solo or over other layers.
  • Relaxed Fit: Loose fitting lightweight layers.

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A multi-functional, super practical baselayer - so versatile, you won't ever want to wear anything else.

If comfort is a priority, don't look any further. The set-in sleeves, offset shoulder seams and flat-lock stitching all contribute to this base-layer's level of comfort and mobility - no matter what you are doing. The 200gm Jersey Merino fabric is so soft, so breathable and so great at regulating your body temperature - so that you will feel great in any weather. In addition, the merino wool naturally resists odour, so you can wear your Oasis base-layer for days on end - and it will still feel great.

  • The 200gm lightweight fabric is 100% merino wool.
  • The slim fit contours to your body.
  • It is recommended for use in snow sports, hiking, yoga, travel and lifestyle.
  • The average weight is 197 g / 6.95 oz.
  • The Oasis features a crewe style neck-line, set-in sleeves, offset shoulder seams that prevent chafing, drop tail hem for added coverage and an Icebreaker merino heat transfer logo.