ErgoFlex

Our school backpack ErgoFlex is as comfortable as a usual, typical solid schoolbag – with an empty weight of only approximately 800 grams. For a perfect fit, the shoulder straps can easily be adjusted to the child’s back. It fits, suits and has room for everything needed.

Further information & Details

The ErgoFlex is so ergonomic and suitable for children's backs that it can carry the AGR seal of approval. Click here for more information.
The backpack adapts to the size of the child's back thanks to the vertically adjustable back strap system.
The anatomically-designed S-shaped straps with breathable mesh lining can easily be adapted to the child's back and fixed with a hook and loop fastener.
The hip belt relieves both shoulders and back. Thanks to a hook and loop fastener it can easily be removed by pulling it out of the loop.
Two large main compartments for ergonomic and back-friendly packing (pack heavy books always close to the body).
Protective base keeps the schoolbag dry.
With retroreflective material. Visibility is improved thanks to the retroreflective areas which reflect incoming light and thus develop a flash-effect.
The DerDieDas pencil cases are equipped with high quality colored pencils „Noris Club“ from Staedtler/Germany, in ergonomic triangular shape and with A·B·S (white protective coating which reinforces the lead core and increases break-resistance).
3 years warranty on DerDieDas schoolbags and accessories.
DerDieDas ErgoFlex on YouTube.

ErgoFlex Exclusive Collection

ErgoFlex Exclusive „Switch Patch“.
With 6 design hook and loop patches, which can easily be switched.
ErgoFlex Exclusive "Switch".
With 3 different front flaps that can be switched according to the child's taste. The set includes two flaps with lovingly crafted designs and one less playful-looking design for when the child gets older.
ErgoFlex Exclusive "Superflash"
With striking flash effect for ideal visibility… and another great feature: the colour of the lid and the side areas change their colour according to the temperature!
ErgoFlex Exclusive LED.
Blinking LEDs draw attention to the porthole which is typical for the DerDieDas schoolbags.

The ErgoFlex comes as a set!

ErgoFlex

Design „Appaloosa“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405045.

Set price:
RRP € 229

ErgoFlex

Design „Dancing“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405044.

Set price:
RRP € 229

ErgoFlex

Design „Big Truck“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405050.

Set price:
RRP € 229

ErgoFlex

Design „Beauty“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405075.

Set price:
RRP € 229

ErgoFlex

Design „Daisy“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405079.

Set price:
RRP € 229

ErgoFlex

Design „Disco Star“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405078.

Set price:
RRP € 229

ErgoFlex

Design „Faultier“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405080.

Set price:
RRP € 229

ErgoFlex

Design „Flamingo“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405046.

Set price:
RRP € 229

ErgoFlex

Design „Ninja on Bike“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405091.

Set price:
RRP € 229

ErgoFlex

Design „Octopus“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405092.

Set price:
RRP € 229

ErgoFlex

Design „Papillon“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405076.

Set price:
RRP € 229

ErgoFlex

Design „Polizei“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405095.

Set price:
RRP € 229

ErgoFlex

Design „Racing“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405094.

Set price:
RRP € 229

ErgoFlex

Design „Rex“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405093.

Set price:
RRP € 229

ErgoFlex

Design „Silver Dolphin“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405077.

Set price:
RRP € 229

ErgoFlex

Design „Tor!“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405090.

Set price:
RRP € 229

ErgoFlex

Design „Dirt Bike“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405053.

Set price:
RRP € 229

ErgoFlex Exclusive "Switch Patch"

Design „Forest“, Limited

ErgoFlex Exclusive “Switch Patch” With 6 design hook and loop patches, on the front pocket and the top.
5-pcs set, . Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g Art. No. 8405087

Set price:
RRP € 249

ErgoFlex Exclusive "Switch Patch"

Design „Safari“

ErgoFlex Exclusive “Switch Patch” With 6 design hook and loop patches, on the front pocket and the top.
5-pcs set, . Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g Art. No. 8405088

Set price:
RRP € 249

ErgoFlex Exclusive "Switch"

Design „Blue“, Limited

ErgoFlex Exklusiv „Switch“. With 2 additional exchange front pockets.
5-pcs set., Set components: Backpack, two additional flaps for the front pocket, sports bag, pencil case, pencil pouch and box for exercise books.
Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405086.

Set price:
RRP € 249

ErgoFlex Exclusive "Switch"

Design „Purple“, Limited

ErgoFlex Exklusiv „Switch“. With 2 additional exchange front pockets.
5-pcs set., Set components: Backpack, two additional flaps for the front pocket, sports bag, pencil case, pencil pouch and box for exercise books.
Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405085.

Set price:
RRP € 249

ErgoFlex Exclusive "Superflash"

Design „Cherry“, Limited

ErgoFlex Exklusiv „Superflash“. With additional retroreflective material on cover flap and side surfaces.
5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405083

Set price:
RRP € 249

ErgoFlex Exclusive "Superflash"

Design „Spaceship“, Limited

ErgoFlex Exklusiv „Superflash“. With additional retroreflective material on cover flap and side surfaces.
5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405084

Set price:
RRP € 249

ErgoFlex Exclusive LED

Design „Air Speed“, Limited

ErgoFlex Exklusiv LED. With flashing porthole.
5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405082

Set price:
RRP € 239

ErgoFlex Exclusive LED

Design „Elfe“, Limited

ErgoFlex Exklusiv LED. With flashing porthole.
5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No. 8405081

Set price:
RRP € 239

ErgoFlex

Design „Star-Kicker“

5-pcs set. Set components: Schoolbag, sports bag with extra inside compartment, pencil case, pencil pouch and book-protector. Schoolbag: Dimensions approx. 33 x 40 x 23 cm, Capacity approx. 20.5 l (incl. front and side pockets), Weight approx. 800 g. Art. No.: 8405049.

Set price:
RRP € 219