FIT & SIZING GUIDE
FIND YOUR PERFECT FIT
Use our smart recommender below or check our detailed flat-measurement chart.
Smart Size Recommender
Something not look right?
Email us at hello@krakatoaunderwear.com.
Krakatoa First Pair Guarantee
Wrong fit on your first pair?
No returns needed.
We’ll credit you the full retail value toward a new size - just cover shipping.
Or View Flat Measurement Chart ▼
How to measure: Lay your best-fitting underwear flat on a surface and measure the waist band width, then double it. Match your measurement to the highlighted Primary Match column. If in-between, size up.
| Size | Listed Waist | Primary Match No Stretch | Normal Stretch | Max Stretch |
|---|---|---|---|---|
| XS | 28–30 in | 25 in | 29 in | 31 in |
| S | 31–33 in | 27 in | 32 in | 34 in |
| M | 34–37 in | 29 in | 35 in | 38 in |
| L | 38–40 in | 32 in | 39 in | 41 in |
| XL | 41–44 in | 35 in | 42 in | 45 in |
| XXL | 45–48 in | 38 in | 46 in | 49 in |
Step 1: Grab a pair of your existing underwear that fits you well
Step 2: Lay them flat on a hard surface
Step 3: Measure the waistband
The waistband is the most important part of your sizing, the rest of the garment has stretch and give in it, but we want to make sure we nail the waistband properly.
- Be sure the waistband is pushed flat when measuring and that there is no curve at the top.
- Measure from end to end, then double it, to know the waistband's circumference.
The above underwear measure 15", for 30" total as a waistband circumference.
Still not quite sure?
Email us at hello@krakatoaunderwear.com with the measurement you got by following the steps above, your height, weight, pants size (waistband), and the brand you were measuring.