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Our designers, parents of young hikers, developed this MH900 t-shirt for hiking, in all weather and on technical trails.
Ultra light and breathable, this t-shirt will be the ideal companion for your child's sporty hikes.
Weighs only 120 grams in size 10-11 years
Quick drying thanks to the polyester component.
Micro-perforated component on back and underarms
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 |
Children's hiking t-shirt, ages 7-15, mh900 twin
#0070B1 / 14-15 Years / 161-172 cm / 8926653
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.
Our designers, parents of young hikers, developed this MH900 t-shirt for hiking, in all weather and on technical trails.
Ultra light and breathable, this t-shirt will be the ideal companion for your child's sporty hikes.
Weighs only 120 grams in size 10-11 years
Quick drying thanks to the polyester component.
Micro-perforated component on back and underarms
Our designers, parents of young hikers, developed this MH900 t-shirt for hiking, in all weather and on technical trails.
Abrasion and friction resistance test: for example, we check that the fleeces do not pill thanks to laboratory tests. Color fastness test: the fastness of the dyes is checked to ensure that no bleeding is possible on contact with saliva. Aging test: repeated washings must not modify the properties of the fabric, its behavior, its thickness or its appearance.
Drying speed measures the ability of a fabric to dry quickly after being wet, according to a standardized protocol.
Created in our international design center at the foot of Mont Blanc, France, this t-shirt is then manufactured by our suppliers in Vietnam. These partners possess real expertise in the production of our t-shirts and with whom we work closely. This trusting relationship with our industrial partners allows us to create high-quality technical products.
Ultra light and breathable, this t-shirt will be the ideal companion for your child's sporty hikes.

Weighs only 120 grams in size 10-11 years

Quick drying thanks to the polyester component.

Micro-perforated component on back and underarms
Our designers, parents of young hikers, developed this MH900 t-shirt for hiking, in all weather and on technical trails.
Our designers, parents of young hikers, developed this MH900 t-shirt for hiking, in all weather and on technical trails.
Abrasion and friction resistance test: for example, we check that the fleeces do not pill thanks to laboratory tests. Color fastness test: the fastness of the dyes is checked to ensure that no bleeding is possible on contact with saliva. Aging test: repeated washings must not modify the properties of the fabric, its behavior, its thickness or its appearance.
Drying speed measures the ability of a fabric to dry quickly after being wet, according to a standardized protocol.
Created in our international design center at the foot of Mont Blanc, France, this t-shirt is then manufactured by our suppliers in Vietnam. These partners possess real expertise in the production of our t-shirts and with whom we work closely. This trusting relationship with our industrial partners allows us to create high-quality technical products.
Ultra light and breathable, this t-shirt will be the ideal companion for your child's sporty hikes.

Weighs only 120 grams in size 10-11 years

Quick drying thanks to the polyester component.

Micro-perforated component on back and underarms
Our designers, parents of young hikers, developed this MH900 t-shirt for hiking, in all weather and on technical trails.
4.95/5
400 reviews
Très bien
very comfortable, quick drying
very comfortable, quick drying
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