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 is awarded 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 LED.
Blinking LEDs draw attention to the porthole which is typical for the DerDieDas schoolbags.
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!

The ErgoFlex comes as a set!

ErgoFlex Exclusive "Switch Patch"

Design „SEK Safety“, 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. 8405129

Set price:
RRP € 269

ErgoFlex Exclusive "Switch Patch"

Design „Twinkle“, 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. 8405128

Set price:
RRP € 269

ErgoFlex Exclusive "Superflash"

Design „Blue Shark“, Limited

ErgoFlex Exklusiv „Superflash“. With additional retroreflective material on the lid and the side areas.
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. 8405127

Set price:
RRP € 269

ErgoFlex Exclusive "Superflash"

Design „Blue Dragon“, Limited

ErgoFlex Exklusiv „Superflash“. With additional retroreflective material on the lid and the side areas.
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. 8405126

Set price:
RRP € 269

ErgoFlex Exclusive "Superflash"

Design „Swan Princess“, Limited

ErgoFlex Exklusiv „Superflash“. With additional retroreflective material on the lid and the side areas.
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. 8405125

Set price:
RRP € 269

ErgoFlex Exclusive "Superflash"

Design „Glitter Flower“, Limited

ErgoFlex Exklusiv „Superflash“. With additional retroreflective material on the lid and the side areas.
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. 8405124

Set price:
RRP € 269

ErgoFlex Exclusive LED

Design „Spider Car“, 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. 8405123

Set price:
RRP € 259

ErgoFlex Exclusive LED

Design „Fantasy“, 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. 8405122

Set price:
RRP € 259

ErgoFlex

Design „Snake“

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.: 8405113.

Set price:
RRP € 249

ErgoFlex

Design „Skate Dog“

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.: 8405112.

Set price:
RRP € 249

ErgoFlex

Design „Stardust“

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.: 8405111.

Set price:
RRP € 249

ErgoFlex

Design „Rock Guitar“

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.: 8405110.

Set price:
RRP € 249

ErgoFlex

Design „Helicopter“

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.: 8405109.

Set price:
RRP € 249

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 € 249

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 € 249

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 € 249

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 € 249

ErgoFlex

Design „Water Lily“

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.: 8405108.

Set price:
RRP € 249

ErgoFlex

Design „Purple Princess“

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.: 8405106.

Set price:
RRP € 249

ErgoFlex

Design „Velvet Heart“

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.: 8405105.

Set price:
RRP € 249

ErgoFlex

Design „Ethno 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.: 8405104.

Set price:
RRP € 249

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 € 249

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 € 249

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 € 249

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 € 249

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 € 249