The special clothing prescribed for South Africa entailed an entire change of dress--helmet, body-clothing, and boots. Sanction had been given in April, 1899, for the storage of a reserve of khaki drill suits,[41] of which the amount authorised would have been insufficient, but fortunately the Clothing department had a surplus which enabled a complete issue to be made on mobilisation. It had been represented from South Africa, with the support of the Director-General of the Army Medical Service at home, that serge was more appropriate to the climate than cotton drill, and the substitution had been approved by the Commander-in-Chief on August 18th. No steps towards effecting the change could be taken until the grant of September 22nd, and the first three divisions embarked with cotton drill clothing.[42] It is probable, however, that even had the money been forthcoming when the change was first approved, not more than half the amount required could have been obtained in the time. One difficulty experienced in connection with the issue of clothing was that of providing each unit with the right number of suits of particular sizes. Many of the reservists who presented themselves on mobilisation were found to have increased considerably in figure, and consequently much fitting and alteration was necessary. This caused delay. At that time the boot for foreign service differed in pattern from that for home service, and an issue of the former was made. The supply on hand was only sufficient to allow a complete issue to men of the mounted services, while dismounted soldiers had one pair of each pattern, reservists having home service pattern entirely. The sudden demand on the market for the materials necessary for these articles of clothing entailed a considerable increase of cost, without, at the outset at least, ensuring provision of the best quality. [Footnote 41: This reserve consisted of 40,000 suits; the number actually issued was sufficient to equip the force completely.] [Footnote 42: At the time of year this was suitable, and serge clothing was eventually sent out. Troops subsequently, up to May, 1900, took one suit of drill and one suit of serge. Later each man took two suits of serge.] [Sidenote: War equipment.]