Christchurch-based Kathmandu bought Oboz in April for US$60m to diversify its product range and expand its geographic spread.
The group got about two-thirds of its sales in Australia in the year through July, with Oboz also contributing $15.9m to the group total of $497.4m. The group had 167 Kathmandu stores in Australia, New Zealand and the UK at that date.
The business will pay a further US$15m if Oboz meets its 2018 earnings target.
Chief executive Xavier Simonet said the company is pleased with the integration of Oboz into the wider group and demand the firm is still seeing for its core Kathmandu products.
"We have achieved good sales growth leading into the key Christmas trading period, and we expect first-half profit to be strongly above last year," he said in a statement.
"As always, our first half-year result is highly dependent on the success of our summer sale."
Kathmandu noted that same-store sales in Australia were up 7.1 per cent, and were 5.2 per cent higher in New Zealand.