Tranquility Size Guide for Diapers & Briefs

October 7, 2021

Here are our suggested size guideline charts. Use a tape measure to measure in inches the widest part of your body between waist and hip. Use this number to determine product size.

For sizes greater than XL, obtain an accurate hip measurement for best fit.

Tranquility Disposable Brief Size Chart

Size DescriptionWaist / Hips (in Inches)Weight (lbs)Women’s Pant SizeMen’s Pant Size
YouthN/A28 – 42 lbsN/AN/A
X-Small18″ – 26″42 – 90 lbs0 – 318 – 26
Small24″ – 32″85 – 100 lbs4 – 624 – 32
Medium32″ – 44″100 – 150 lbs8 – 1232 – 44
Large45″ – 58″150 – 200 lbs14 – 1844 – 58
X-Large56″ – 64″200 – 250 lbs18 – 2456 – 64
2XL60″ – 80″250+ lbs26 – 2860+
3XL64″ – 96″250+ lbs28+64+
4XL70″ – 106″250+ lbs28+70+

Correct Fitting Brief

  • Correct tab placement
  • Should fit like underwear
  • No gaps

Poorly Fitting Brief

  • Tape tabs overlapping
  • Brief may leak

Too Small

  • Tape tabs only reach the side panels
  • May cause skin irritation


Tranquility Disposable Absorbent Underwear (DAU) Size Chart

Size DescriptionWaist / Hips (in Inches)Weight (lbs)Women’s Pant SizeMen’s Pant Size
Youth15″ – 25″38 – 65 lbsN/AN/A
X-Small17″ – 28″65 – 85 lbs0 – 317 – 28
Small22″ – 36″ 80 – 125 lbs4 – 6 22 – 36
Medium34″ – 48″120 – 175 lbs6 – 1234 – 48
Large44″ – 54″170 – 210 lbs12 – 1844 – 54
X-Large48″ – 66″210 – 250 lbs18 – 2448 – 66
2XL62″ – 80″250+ lbs24+62+

Correct Fitting Brief

  • Product should fit snugly touching the crotch with no gaps around the legs.

Poorly Fitting Disposable Absorbent Underwear

Too Big

  • Gaps around legs, underwear not touching the crotch will cause leakage
  • Too Small

    • Too tight around waist and legs, may cause skin irritation