Foundation Collection

Size Guide

Structured. Relaxed. Unisex.
Review measurements carefully before ordering.

Measurement Method

All measurements are garment measurements, taken laid flat in centimeters (cm).

  • Length — Highest shoulder point to hem
  • 1/2 Chest — Measured armpit to armpit (double for full circumference)
  • Shoulder — Seam to seam across the back
  • Sleeve — Shoulder seam to cuff

Due to handmade production, allow 1–1.8cm natural variation.


General Fit

  • Relaxed unisex silhouette
  • Men — take your usual size for a relaxed fit
  • Women — size down for a closer fit
  • Between sizes — size up for an oversized aesthetic

T-Shirts — 200gsm / 100% Cotton

Structured mid-weight cotton designed for durability and shape retention.

Size Length (cm) 1/2 Chest (cm) Shoulder (cm) Sleeve (cm)
S 70 52 46 21
M 72 54 48 21
L 74 56 50 22
XL 76 58 52 23

Hoodies — 340gsm Fleece

Premium fleece interior with structured outer surface.

Size Length (cm) 1/2 Chest (cm) Shoulder (cm) Sleeve (cm)
S 68 56 48 61
M 70 57 49 62
L 72 59.5 51 63
XL 74 62 53 64

Jumpers — 320gsm French Terry

Mid-weight French terry knit. Breathable with a structured drape.

Size Length (cm) 1/2 Chest (cm) Shoulder (cm) Sleeve (cm)
S 68 55 47 61
M 70 57 49 62
L 72 59 51 63
XL 74 61 53 64

How to Measure Yourself

Lay a garment you already own flat and compare against our charts.

  • 1/2 Chest — Armpit to armpit
  • Length — Shoulder to hem
  • Shoulder — Seam to seam
  • Sleeve — Shoulder seam to cuff

Need Help Sizing?

Email us at info@ytinumoc.com with your height, weight, the item you want, and your preferred fit. We'll guide you before you order.

Get Sizing Help