more instructions

1 files changed, 15 insertions, 1 deletions

diff --git a/source/accessories/bags/roll_top_backpack/index.rst b/source/accessories/bags/roll_top_backpack/index.rst
index 44f4b39..c275559 100644
--- a/source/accessories/bags/roll_top_backpack/index.rst
+++ b/source/accessories/bags/roll_top_backpack/index.rst
@@ -66,11 +66,25 @@ a single strap of double thickness.
 Sew the webbing pieces to the allowance at the top of the bottom back
 piece, at 4 cm from the center.
 
-Cut a piece of 25 mm webbing, 60 cm long, sew it to the allowance at the
+Cut a piece of 25 mm webbing, 70 cm long, sew it to the allowance at the
 top of the bottom back piece, right at the center.
 
 [cut 25 mm webbing for the lower part of the shoulder straps, TBD]
 
+Cut two pieces of 25 mm webbing, 70 cm long, put them on each strap
+support so that one edge goes from one corner to the middle of the long
+side and there are 5 cm of webbing beyond the long side.
+
+Fold the strap support in half, right sides facing, and sew at 1 cm from
+the long edge.
+
+Turn inside out, topstitch all around the webbing.
+
+Put the strap support on top of the bottom back, 5 cm from the bottom,
+with the webbing facing up, and sew in the allowance.
+
+Trim the excess webbing.
+
 Right sides together, put the top back piece over the bottom back and
 sew. Press the allowances up.