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These under shorts are designed for your mountain bike rides lasting an average of 5 hours
Its new anatomical skin adapts perfectly to your body shape for maximum comfort and minimum friction
Size guide

To take your measurements:
|
Chest size: (in cm) |
84-87 | 88-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 | 154-159 |
| Size US | XS | XS/S | S | S/M | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL |
| Size EU | XS | S | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL | 4XL / 5XL | 5XL |
|
70-73 | 74-77 | 78-81 | 82-85 | 86-89 | 90-95 | 96-100 | 101-105 | 106-111 | 112-117 | 118-123 | 124-129 | 130-135 | 136-141 | 142-147 | |
| EU size - Europe | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 | |
| Universal size | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
Waist size: (in cm) |
20.25-20.85 | 20.86-21.5 | 21.51-22.15 | 22.16-22.8 | 22.81-23.45 | 23.46-24.1 | 24.11-24.75 |
| Universal size | XS | S | M | L | XL | 2XL | 3XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
|
Chest size: (in cm) |
76-79 | 80-83 | 84-87 | 86-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
|
Under Bust Size: (in cm) |
63-67 | 68-72 | 73-77 | 78-82 | 83-87 | 88-92 | 93-97 | 98-102 | 103-107 | 108-112 | 113-117 |
| Size | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
| UK size | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
For high end swimwear with back ties, if your size is not available, you can wear another size with similar band size.
Examples: with a size 95C , you can wear a 100B by tightening the rear link more , or a 90D by tightening the back link less .
| Chest size in cm) | ||||||||
| Section A-A | 72-74 | 77-79 | 82-84 | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 |
| Cutting A | 75-77 | 80-82 | 85-87 | 90-92 | 95-97 | 100-102 | 105-107 | 110-112 |
| Cutting B | 78-80 | 83-85 | 88-90 | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 |
| Cutting C | 81-83 | 86-88 | 91-93 | 96-98 | 101-103 | 106-108 | 111-113 | 116-118 |
| Cutting D | 84-86 | 89-91 | 94-96 | 99-101 | 104-106 | 109-111 | 114-116 | 119-121 |
| Cutting E | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 | 112-114 | 117-119 | 122-124 |
| Cutting F | 90-92 | 95-97 | 100-102 | 105-107 | 111-113 | 115-117 | 120-122 | 125-127 |
| Cutting G | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 | 118-120 | 123-125 | 128-130 |
|
Waist size: (in cm) |
57-58 | 58-62 | 63-65 | 66-69 | 70-73 | 74-77 | 78-84 | 85-90 | 91-96 | 97-102 | 103-108 | 109-114 | 115-120 | 121-128 | 129-132 | 133-139 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
| Size: (cm) |
56-59 | 60-63 | 64-67 | 68-71 | 72-75 | 76-79 | 80-93 | 84-89 | 90-95 | 96-101 | 102-107 | 108-113 | 114-119 | 120-125 | 126-131 | 132-137 |
| Hipsize: (cm) |
86-89 | 90-93 | 94-97 | 98-101 | 102-105 | 106-109 | 110-113 | 114-119 | 120-125 | 126-131 | 132-137 | 138-143 | 144-149 | 150-155 | 156-161 | 162-167 |
| EU size - Europe | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 |
| Universal size | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
16.25-17.1 | 17.11-17.95 | 17.96-18.8 | 18.81-19.5 | 19.51-20.1 | 20.11-20.7 | 20.71-21.3 | |
| Universal size | 2XS | XS | S | M | L | XL | 2XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
| Height: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-152 | 153-162 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Size: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-150 | 151-160 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Hand size: (in cm) |
13.9-14.9 | 14.91-15.9 | 15.91-16.9 | 16.91-17.8 | 17.81-18.6 | 18.61-19.45 |
| Universal size | 4 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
|
Head measurement: (in cm) |
41.1 | 43.6 | 44.9 | 45.7 | 47.4 | 48.6 | 49.7 | 50.6 |
| Size | 3 Months | 6 Months | 9 Months | 12 Months | 18 Months | 2 Years | 3 Years | 4 Years |
| Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |
Size guide

To take your measurements:
|
Chest size: (in cm) |
84-87 | 88-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 | 154-159 |
| Size US | XS | XS/S | S | S/M | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL |
| Size EU | XS | S | M | M/L | L | L / XL | XL | XL / 2XL | 2XL | 2XL / 3XL | 3XL | 3XL / 4XL | 4XL | 4XL / 5XL | 5XL |
|
70-73 | 74-77 | 78-81 | 82-85 | 86-89 | 90-95 | 96-100 | 101-105 | 106-111 | 112-117 | 118-123 | 124-129 | 130-135 | 136-141 | 142-147 | |
| EU size - Europe | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 | |
| Universal size | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
Waist size: (in cm) |
20.25-20.85 | 20.86-21.5 | 21.51-22.15 | 22.16-22.8 | 22.81-23.45 | 23.46-24.1 | 24.11-24.75 |
| Universal size | XS | S | M | L | XL | 2XL | 3XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
|
Chest size: (in cm) |
76-79 | 80-83 | 84-87 | 86-91 | 92-95 | 96-99 | 100-103 | 104-107 | 108-113 | 114-118 | 119-123 | 124-129 | 130-135 | 136-141 | 142-146 | 147-153 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
|
Under Bust Size: (in cm) |
63-67 | 68-72 | 73-77 | 78-82 | 83-87 | 88-92 | 93-97 | 98-102 | 103-107 | 108-112 | 113-117 |
| Size | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 |
| UK size | 30 | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
For high end swimwear with back ties, if your size is not available, you can wear another size with similar band size.
Examples: with a size 95C , you can wear a 100B by tightening the rear link more , or a 90D by tightening the back link less .
| Chest size in cm) | ||||||||
| Section A-A | 72-74 | 77-79 | 82-84 | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 |
| Cutting A | 75-77 | 80-82 | 85-87 | 90-92 | 95-97 | 100-102 | 105-107 | 110-112 |
| Cutting B | 78-80 | 83-85 | 88-90 | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 |
| Cutting C | 81-83 | 86-88 | 91-93 | 96-98 | 101-103 | 106-108 | 111-113 | 116-118 |
| Cutting D | 84-86 | 89-91 | 94-96 | 99-101 | 104-106 | 109-111 | 114-116 | 119-121 |
| Cutting E | 87-89 | 92-94 | 97-99 | 102-104 | 107-109 | 112-114 | 117-119 | 122-124 |
| Cutting F | 90-92 | 95-97 | 100-102 | 105-107 | 111-113 | 115-117 | 120-122 | 125-127 |
| Cutting G | 93-95 | 98-100 | 103-105 | 108-110 | 113-115 | 118-120 | 123-125 | 128-130 |
|
Waist size: (in cm) |
57-58 | 58-62 | 63-65 | 66-69 | 70-73 | 74-77 | 78-84 | 85-90 | 91-96 | 97-102 | 103-108 | 109-114 | 115-120 | 121-128 | 129-132 | 133-139 |
| UK size | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 | 28 | 30 | 32 |
| EU size - Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 |
| Universal size | 3XS | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL |
| Size: (cm) |
56-59 | 60-63 | 64-67 | 68-71 | 72-75 | 76-79 | 80-93 | 84-89 | 90-95 | 96-101 | 102-107 | 108-113 | 114-119 | 120-125 | 126-131 | 132-137 |
| Hipsize: (cm) |
86-89 | 90-93 | 94-97 | 98-101 | 102-105 | 106-109 | 110-113 | 114-119 | 120-125 | 126-131 | 132-137 | 138-143 | 144-149 | 150-155 | 156-161 | 162-167 |
| EU size - Europe | 34 | 36 | 38 | 40 | 42 | 44 | 46 | 48 | 50 | 52 | 54 | 56 | 58 | 60 | 62 | 64 |
| Universal size | 2XS | XS | S | M | M-L | L | L-XL | XL | XL-2XL | 2XL | 2XL-3XL | 3XL | 3XL-4XL | 4XL | 4XL-5XL | 5XL |
|
16.25-17.1 | 17.11-17.95 | 17.96-18.8 | 18.81-19.5 | 19.51-20.1 | 20.11-20.7 | 20.71-21.3 | |
| Universal size | 2XS | XS | S | M | L | XL | 2XL |
|
Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |

To take your measurements:
| Height: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-152 | 153-162 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Size: (in cm) |
56-63 | 64-70 | 71-76 | 77-82 | 83-89 | 90-97 | 98-104 | 105-114 | 115-124 | 125-132 | 133-142 | 143-150 | 151-160 |
| Universal size | 3 Months | 6 to 9 months | 9 to 12 months | 18 Months | 2 Years | 3 Years | 4 Years | 5 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
| Hand size: (in cm) |
13.9-14.9 | 14.91-15.9 | 15.91-16.9 | 16.91-17.8 | 17.81-18.6 | 18.61-19.45 |
| Universal size | 4 Years | 6 Years | 8 Years | 10 Years | 12 Years | 14 Years |
|
Head measurement: (in cm) |
41.1 | 43.6 | 44.9 | 45.7 | 47.4 | 48.6 | 49.7 | 50.6 |
| Size | 3 Months | 6 Months | 9 Months | 12 Months | 18 Months | 2 Years | 3 Years | 4 Years |
| Head measurement: (in cm) |
51.1 | 52 | 52.9 | 53.8 | 54.7 | 55.6 | 56.5 | 57.4 | 58.3 | 59.2 | 60.1 |
| Size | T0 | T1 | T2 | T3 | T4 | T5 | T6 | T7 | T8 | T9 | T10 |
Comfort 900 black mountain bike cycling shorts
black / S / 8677509
Decathlon Bagatelle
Decathlon Bagatelle
80832
Moka
Maurice
Decathlon Beau Plan
Beautiful Roundabout Plan
21001
Grapefruits
Maurice
Free home delivery from Rs 2,500
We offer several delivery methods:
Free home delivery from Rs 2,500
We offer several delivery methods:
Return and exchange
You have up to 90 days to return your items.
More information via this lien.
Return and exchange
You have up to 90 days to return your items.
More information via this lien.
These under shorts are designed for your mountain bike rides lasting an average of 5 hours
Its new anatomical skin adapts perfectly to your body shape for maximum comfort and minimum friction
These under shorts are designed for your mountain bike rides lasting an average of 5 hours
Théo wears a size M, weighs 77kg and is 185cm tall.
Skin thickness: 14 mm Skin density: 100 Kg/M3 Skin firmness: 35 KPa
Strapless underpants are definitely more practical. But what about support? To ensure the necessary support even without straps, we offer underpants that fit the shape of your body, like boxer briefs. Their elastic band around the waist adapts to you and stays in place without any adjustments.
This skin is designed for intensive users. The reinforcement foam is firm. It provides good comfort and protects the cyclist's support areas for rides of up to 5 hours. Foam thickness: 14 mm Foam density: 100 KG/m3 Foam firmness: 35 KPa
Undershorts To avoid irritation, we recommend washing them like underwear. Shorts / Undershorts: During riding, your undershorts and shorts should not be tied. Why? Because they each have their role: - The undershorts stay in place and provide comfort and support. - The shorts move with you to give you more freedom of movement when riding.
Our team of product designers, based at the B'Twin Village in Lille, is constantly researching ways to improve the comfort of our customers on their bikes. Our obsession is to develop products that meet user needs and eliminate user constraints.
Don't hesitate to consult our support sheet dedicated to the maintenance of your mountain bike clothing https://support.decathlon.fr/comment-bien-entretien-mes-vetements-vtt
Its new anatomical skin adapts perfectly to your body shape for maximum comfort and minimum friction
These under shorts are designed for your mountain bike rides lasting an average of 5 hours
These under shorts are designed for your mountain bike rides lasting an average of 5 hours
Théo wears a size M, weighs 77kg and is 185cm tall.
Skin thickness: 14 mm Skin density: 100 Kg/M3 Skin firmness: 35 KPa
Strapless underpants are definitely more practical. But what about support? To ensure the necessary support even without straps, we offer underpants that fit the shape of your body, like boxer briefs. Their elastic band around the waist adapts to you and stays in place without any adjustments.
This skin is designed for intensive users. The reinforcement foam is firm. It provides good comfort and protects the cyclist's support areas for rides of up to 5 hours. Foam thickness: 14 mm Foam density: 100 KG/m3 Foam firmness: 35 KPa
Undershorts To avoid irritation, we recommend washing them like underwear. Shorts / Undershorts: During riding, your undershorts and shorts should not be tied. Why? Because they each have their role: - The undershorts stay in place and provide comfort and support. - The shorts move with you to give you more freedom of movement when riding.
Our team of product designers, based at the B'Twin Village in Lille, is constantly researching ways to improve the comfort of our customers on their bikes. Our obsession is to develop products that meet user needs and eliminate user constraints.
Don't hesitate to consult our support sheet dedicated to the maintenance of your mountain bike clothing https://support.decathlon.fr/comment-bien-entretien-mes-vetements-vtt
Its new anatomical skin adapts perfectly to your body shape for maximum comfort and minimum friction
These under shorts are designed for your mountain bike rides lasting an average of 5 hours
4.48/5
382 reviews
I had chafing from cycling. I was advised a pair of cycling shorts and they solved my problems. Be careful to try them on first because the size is small.
Product called "undershorts" but which seems to be able to be worn as is. Good quality, but too small... too bad.
Comfortable undershorts for mountain biking under shorts or mountain bike pants.
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