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The Mobius Tri Short is compressive without excess tightness. We have taken the pattern of the Forza Trishort with 4 pockets, put in a fleece (minimalist) pad, then replaced the Forza Fabric with Mobius™ Comfort Compression fabric. The result is a high performance compression tri short that is comfortable, not tight.

Sizing: Please refer to the size chart button above for sizing guidance. 
Fit Type: Comfort Compression
Fit Note: 
Please do not assume your size, please use our size chart. If in doubt, email questions to  

Features and Benefits:

  • 8-panel short made of Mobius™ Comfort Compression for a supportive and comfortable compressive fit
  • 3-inch Mobius™ Comfort leg-bands keep shorts in place without excessive "squeeze"
  • 4 pockets; 2 on each leg on the outer front thigh to store training/racing essentials
  • 1-inch elastic waist band with drawcord for adjustability
  • Seamless 1-piece, 4-way stretch minimalist fleece pad provides comfort on the bike and goes unnoticed on the run
  • Microlock™ stitching is extremely durable 
  • This environmentally-friendly innovation is completely free of solvents
  • Not recommended for repeated use in a chlorinated pool
  • Made in USA

Fleece Pad Dimensions:

  •      Total Length: 11.25" (28.5cm)
  •      Front Max Width: 4.5" (11.5cm)
  •      Most Narrow Point: 3.5" (8.5cm)
  •      Back Max Width: 6.5" (16.5cm)
  •      Thickness : 1.25 mm

Inseam lengths:

  •      Small: 8" (20.32cm)
  •      Medium: 8.5" (21.59cm)
  •      Large: 9" (22.86cm)
  •      XLarge: 9.5" (24.13cm)

Outseam lengths:

  •      Small: 14.5" (36.83cm)
  •      Medium: 15.5" (39.37cm)
  •      Large: 16.5" (41.91cm)
  •      XLarge: 17.5" (44.45cm)

Front Rise (measurement from center pad up to the top of the waistband):

  •      Small: 8.75"
  •      Medium: 9.75"
  •      Large: 10.25"
  •      XLarge: 10.75"

Rear Rise (measurement from center pad up to the backside of the waistband):

  •      Small: 10.75"
  •      Medium: 11.25"
  •      Large: 11.75"
  •      XLarge: 12.25"


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Customer Reviews
5.0 Based on 47 Reviews
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Filter Reviews:
John S.
United States United States
I recommend this product
Love ‘em!

The Mobius Tri Short carries on the quality and comfort reputation that DeSoto clothing has developed over the years. Great all around tri short at an affordable price. I look forward to several seasons of use from these shorts!

A De Soto Sport Customer
Donavon L.
United States United States
I recommend this product
The BEST running / TRI short hands down

This is my 4th pair added to the collection. My 'GO TO' short for all my runs and riding. With 4 pockets, same durable material and minimal padding that will not bunch up, this is a win for me. The pockets are so good, you can put a Pepsi bottle in the side pocket and run with it, it will not fall out. Perfect for long endurance runs too. Just wash and hang dry, these shorts will last forever. Thanks Team DeSoto !!!

Alex S.
United States United States
I recommend this product
Mobius Tri Short go Looooong on performance!

Fantastic fit (I have very strong thighs and many shrts too tight) and the riding pad gives great comfort as I soend many hours in the saddle. The pckets are erfect too for my smartphone even (80mm x 150mm) and of course gels, etc

Derek C.
United States United States
I recommend this product
My go to shorts

I’ve been using these shorts for the last 5-6 years, maybe even longer. I love the four holster pockets, plus I’ve got about three pairs, all of them have lasted 3-4 years at least.

Christian d.
United States United States
Great shorts but the drawstring-waist cord length is so unnecessary

Excellent size guide on the website. I went with a Medium and it fit perfect. However the drawstring waist cord is so long. Even when tied there’s over a foot of extra length. It would be a bad idea to cut it off because the plastic trim pieces would make the laces fal inside the short... thus you wouldn’t be able to thread it back through the waist band

De Soto Sport

Hi Christian, Thanks for the feedback. Glad to hear our sizing guide worked and you love the shorts. Please feel free to remove the draw cord. If you need it again we have a helpful video on how to put it back. You can find it here ~


  Height Weight Waist Chest Hips
X-Small < 5'6" in / <168 cm 135 lbs / 61 kg 22”-24” in / 56-61 cm < 37” in / < 94 cm
Small 5’6”-5’8” in / 168-173 cm 145 lbs / 66 kg 24”-27” in / 61-69 cm 37”-39” in / 94-99 cm < 34" in  / < 86 cm
Medium 5'9" in / 175-180 cm 165 lbs / 75 kg 27”-32” in / 69-81 cm 39”-42” in / 99-107 cm 34"-38" in  / 86-96 cm
Large 6'0" in / 183-188 cm 195 lbs / 88 kg 32”-35” in / 81-89 cm 42”-45” in / 107-114 cm 38"-42" in / 96-106 cm
X-Large 6'2" in / 191-196 cm 215 lbs / 98 kg 35”-41” in / 89-104 cm 45”-48” in / 114-122 cm 42"-47" in / 106-119 cm
XX-Large 6'5" in / 197 cm+ 235 lbs / 107 kg 42” in +  / 105 cm + 49” in + / 123 cm + 48" in + / 121 cm +


The size chart above should serve as a general guide. If you would like assistance in determining the proper size, please send the following information to

WEIGHT - Accuracy helps us provide a more accurate size for you.
CHEST - Fullest part of breast, measured as the largest part of circumference right over the pectoral muscle.
WAIST -  Circumference measured at the belly-button line - this is NOT the same as your pants waist size.
HIPS - Circumference measured at the widest point, NOT at your hips where your belt may go. Typically this will measure just a few inches below your hip bones and around the largest part of the glutes.

If you do not have a tape measure and you need something to measure with, use a belt, or smart phone power cord, and a ruler.


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